Welcoming Notes: Hello everyone, Soul here, and welcome to the first ever (I think, correct me if I'm wrong) Naruto x Masou Gakuen HxH (Hybrid x Heart Magias Academy Ataraxia) story. If you know me, I tend to go crazy with adding crossovers so there will be more; like Kamen Rider, obviously.

This story will be one of many future stories where I use Naruto & Kamen Rider in genetic harem anime stories (lol); i.e. Absolute Duo, Asterisk War, Blade Dance of the Elementalers, Chivalry of a Failed Knight, Date A Live, Dragonar Academy, Hundred, Infinite Stratos, Sky Wizards Academy, Undefeated Bahamut Chronicle, Unlimited Fafnir, World Break: Aria of Curse for a Holy Swordsman. I plan on using High School DxD and Testament of Sister New Devil together as well, as people been requesting of me a lot!

Oh, and I f'n love Kamen Rider. Come at me *dodges objects, pointy objects, and the kitchen sink*

Hopefully this story will be the spark I need for constant story updates, since I now have my future releases planned. Also, after watching the anime, there is No. Way. In. Hell. Am I using Sylvia. Sylvia will not be in harem, even as an older version. At best, she'll be like a little sister to Naruto. I swear, the anime was doing fine until that scene happened (and it even continued in the Vol. 5 OVA short)! Ahem…I have a suitable replacement. More information at the bottom.

Oh, and this will be a citrus story! For some familiar with HxH, the Heart Hybrid scenes will be limes, and the Climax Hybrid scenes will be lemons. Any who, on with the show!

Disclaimer: I do not own Naruto, Hybrid x Heart Magias Academy Ataraxia, or any other crossovers that will appear.

Special thanks goes to NorthSouthGorem for beta-reading this for me, and his idea to use Gurren Lagann's Spiral Power in the future.

Now Presenting: Eros Overlord: Kamen Rider Spyeros

Harem: Aine Chidorigafuchi, Yurishia Farandole, Hayuru Himekawa, Reiri Hida, Scarlet Fairchild, and more...

Prologue: A Fishcake's Begins Night

A beautiful lake, and snow-covered mountain peaks.

A huge city with tall buildings.

And a huge, mechanical clock that covered a whole wall.

(Megafloat Japan, Ataraxia)

Within a small lab on the Megafloat, a young boy lay in bed, unconscious. He had spiky blonde hair, whisker-marks on his cheeks, and wore a blue patient gown. Hovering over his body was a woman, with dark hair and deep blue eyes. She wore a white jacket over a long, dark dress and high heels.

"Where did you find him, Dr. Nayuta?" asked her aide.

"I was out on a little stroll on the Tokyo Float, and came around his little guy," Nayuta explained, absently caressing his cheek, "When I scanned him, I discovered that he has an incredible compatibility with the Heart Hybrid Gear. His levels are around the same as my son Kizuna. I've decided; he'll be the second individual in the world with the Heart Hybrid Gear. He and Kizuna both will be the frontlines that'll save the world."

"Understood, ma'am," her aide confirmed, making some notes on her clipboard, "I shall prepare the examination room for our new arrival."

"Please do…"

As the aide left, Nayuta's hand drifted from the boy's cheek to his chest, where his heart was located. She smiled when she saw a small glow emanated from his chest. She reached out with her hand, but retracted it when a spark zapped her.

"Now, that's interesting. You may be more useful than Kizuna… but what secrets are you hiding, my little maelstrom?"

(Ataraxia, Labs, Hallway)

The blonde-haired boy found himself sitting in a hallway, looking through different magazines he'd found scattered around the lab. All of them ranged from fashion, to cooking, to video games, to comic strips and so on. Reading them was the only way Naruto could sit still, as he didn't like standing still for long doing nothing.

As he flipped through a magazine detailing different kinds of pranks, a young boy with dark hair nearly ran past him. The blonde's ear twitched as he looked up at the boy, blinking owlishly.

"Hello, I'm Kizuna!" the boy greeted enthusiastically, "What's your name?"

"…Naruto. My name is… Uzumaki Naruto," he responded.

"Ah! Naruto, like the topping in ramen! Pleased to meet you!" chirped Kizuna, grabbing Naruto's hand and shaking it, "We're going to save the world together!"

"Save…the world?" Naruto questioned with a tilt of his head, with a question mark floating out of him.

"Yep! You and I! My mother said so! She runs things here!" stated Kizuna proudly.

"Ah. You're Dr. Nayuta's son." Naruto acknowledged, with Kizuna nodding, "Judging by your running, is there a test the professor requires of you?"

"Nope! I stole this comic book from a guy in the bathroom stall." Kizuna said, producing said book, "He was making weird noises and it was distracting my bathroom break. So, I took it!"

"What is it?" Naruto asked, reaching out in curiosity. Obligingly, Kizuna handed him the book. "Huh? Why is the girl naked?"

"I don't know. Maybe it'll be explained in the comic. But I gotta run now!" Kizuna said quickly and took off, "Tell me about it later!"

Naruto sweatdropped as Kizuna ran for it. A few seconds later, a young man in a lab coat rounded a corner and sprinting past the young blond, drawing more sweatdrops from him.

"Get back here, you little brat!" shouted the angry man, "That book's not for brats like you!"

"Catch me if you can!" Kizuna's voice echoed through the halls.

"Idiot. You just practically admitted that it was you," Naruto noted with a facepalm, "Keep running, dummy."

Out of curiosity, Naruto flipped opened the comic book, furrowing his brow in confusion at what was going on. "why the naked man and naked woman were rubbing their bodies against each other? " he wondered aloud, flipping a page, "And how come the girl's chest is so big? So weird…"

(Testing Space)

A few months passed since Naruto and Kizuna met. Within that time, the two became fast friends. Before Naruto had met Kizuna, his life was solely one of experimentation, emptiness and boredom. But after the infamous doujin theft, the two boys grew as close as brothers.

They also had healthy competition in terms of testing out the Heart Hybrid Gear System. Kizuna was equipped with the HHG Eros, a dark suit with glowing pink tron lines. Naruto has a Proto Heart Hybrid Gear suit, a dark and silver suit with glowing silver tron line and a unique utility belt. Naruto's suit was made from gathered data of the legendary warrior Spyros, a man who'd paired a discarded HHG Core with the Rider Gear System, a relic from ages past.

"Ready for another day of fun?" Naruto cheekily asked Kizuna, who elbowed him.

"Of course, if you're ready to lose to me," his friend replied confidently, "We gotta break our tie somehow."

"My my. You two are in good spirits." Nayuta mused as her son and his friend entered her testing area.

"Loser has to buy the winner their favorite food," Naruto revealed, even as he fist-bumped his friend, "Today's ramen bowl special will be mine, Kizuna!"

"In your dreams, Naruto!" Kizuna countered, shaking his fist at the blonde, "Today's meat bun special is going into my stomach!"

"Now now, boys," Nayuta chided them, giggling amusedly, "Complete the program for today's test. Then, you can worry about food."

"Yes, ma'am!" Naruto cheered with a salute, "You can count on us!"

"We'll do our best, mom!" Kizuna added excitedly.

"Good boys. I know you both will try your hardest today." Nayuta said, bringing up the schedule for the two, "You're the only ones in the world with the Heart Hybrid Gear. The results of these tests will be the key to saving the world."

Both kids nodded and prepared for the tests, with virtual dummies of materializing before them. They took the appearance of the Magitech Knights, the mysterious automatons that had forced their way into the world, but at a more manageable size. Kizuna got into a fighting stance, while Naruto put his helmet on and cracked his fingers.

"We're gonna be heroes," Naruto declared.

Kizuna nodded back in agreement. "Let's do this!"

The two young boys fist-bumped and charged at their targets. Kizuna executed a flying roundhouse kick on one of the virtual constructs. It shattered on impact, with Kizuna moving on to the next target with an uppercut.

'BLADE LOADING'

A blade appeared from Naruto's gauntlet after the latter pressed a button on his belt. Rushing forward, he stabbed his blade on the face of the Magitech Knight.

(Nayuta's office, a few weeks later)

"Who is that?" Naruto wondered aloud, tilting his head in curiosity.

"I don't know, but her hair is pretty," replied Kizuna, staring with wonder.

Both Naruto and Kizuna watched as a couple of aides rushed out of the office with a gurney. On the gurney was an unconscious young girl with silver hair, and wearing a pink patient gown.

"We discovered her in Tokyo. Probably a lost child like you, Naruto," said Nayuta from behind the two boys, "That girl has incredibly high compatibility with the HHG."

"So she's another comrade." Naruto said, and fist-bumped Kizuna, "Pretty awesome."

"Actually, no," corrected the older woman, drawing confusion from the two boys, "More like a replacement."

"Replacement? What do you mean?" Kizuna asked, with Nayuta looking at him apathetically.

"As I stated, the girl's compatibility rating is high. Naruto's own compatibility has been slowly increasing with each test. As for you, Kizuna, given your far inferior specs, there's no point in continuing to test you. So now you don't need to come here anyone, Kizuna."

"Wha-?"

Naruto was further confused at Nayuta's wording. How could the professor say that? She's given Kizuna and himself nothing but praise after each test day, and encouraged them to do better. She even supported their goal of becoming heroes together, so what prompted the change of heart? What did Kizuna do wrong?

"That will be all. You are dismissed, Kizuna. These kind people will escort you off the premises…" Nayuta stated and walked away.

"Mom!"

Kizuna tried to chase after her, but tripped and fell face first onto the ground.

"Goodbye, Kizuna," was her cold answer, the woman glancing only momentarily back at her fallen child, "I don't need you anymore."

Nayuta turned to stride after the girl in the gurney, putting Kizuna completely out of her mind.

Naruto stood still in shock as a couple of young women in lab coats walked past him. "No!" he shouted suddenly, reaching his hand out as the women gently lifted his friend up.

"Wait, mom! No! I'll try even harder! Please!" Kizuna cried out, struggling against their grip as they escorted him away.

"Kizuna!" Naruto ran out of the room. Before he could run after him, however, Nayuta called out to him.

"Leave him. He'll be fine!" she barked, "We have a whole day of testing ahead of us!"

Naruto gritted his teeth and turned to Nayuta, bothered by her emotionless tone of voice.

"Naruto!"

A distraught Naruto looked back at Kizuna. He had a smile on his face, but tears in his eyes as he was being dragged away.

"Become a hero…for the both of us!" called the young boy, reaching out his arm for their signature fist-bump.

Naruto's tears rolled down his whisker-marked cheeks at the prospect of not being with his first friend. Wiping the tears away with his arm, he punched his fist forward as if meeting Kizuna's fist-bump.

"I will. Believe it!"

(Nayuta Labs, Hallway, several weeks later)

Naruto was walking down the hallway, scheming his next prank. After meeting Kizuna, he'd discovered that he had a knack for them, using them to break Kizuna out of timeout. He was extremely creative with them, like the time he managed to completely gift-wrap the entire Nayuta Labs for Christmas. Naruto took pride in his work, the workers in the facility didn't share the sentiment. That was why that Naruto made sure his genius pranks were not traced back to him.

Sure, everyone suspected him, but they never had any proof.

As Naruto's thoughts wandered from choosing between a prank involving syrup and aluminum foil, and one that would turn everyone's skin pink; a loud sniffling interrupted his train of thought.

Stopping in his tracks, he spotted the girl he was kept away from. She was on the ground, her hands to her face as she cried.

'That's…' Naruto thought, remembering her from the day that Kizuna was kicked out of Nayuta Labs.

At first, there was resentment from Naruto towards the girl. He believed that she was responsible for ruining the promise he and Kizuna had made together. But as the weeks past by, the resentment disappeared from Naruto, who found that he couldn't hold a grudge over sometime so trivial. Since they were in the same program, it's best for them to get to know each other as future comrades.

This was his chance.

"Hey there," Naruto said, bending down with his hands on his knees, "What's wrong?"

The girl sniffed and lowered her eyes, allowing Naruto to see her red eyes for the first time.

"P-Pretty…" Naruto mumbled, getting down on one knee, "Um, I don't know why you're crying, but I can help."

He held out his hand, offering his support with a friendly smile on his face. The girl stared at him, her tears staining her face. Fearful, she got up and ran away.

"Hey, wait!" Naruto called out, "At least let me know your name!"

The silver-haired stopped at his voice, briefly side-eyeing him, before running off again.

"What with her?" Naruto wondered, scratching the back of his head.

(A few years later)

More time passed since Kizuna's dismissal from the Heart Hybrid Gear program. For Naruto, who was about to turn 11-years-old, life had been dull, and he hadn't had the chance to speak to the new girl. Not only that, but he and the mysterious girl were no longer to sole beta testers of the Heart Hybrid Gear.

It was discovered that females have a higher compatibility with the Heart Hybrid than the males. Due to Nayuta's fame of creating effective weapons to fight the Magitech Knights, young girls from all over flocked to Ataraxia. Despite the high compatibility, Nayuta only chose those with the highest rating. But none ever came close to the mysterious silver-haired girl's absurdly high compatibility rating.

Speaking of the her, even Nayuta was secretive about the girl, and kept her well away from Naruto. The isolation was annoying Naruto, making him slowly losing motivation to continue with the constant tests administered by Nayuta.

However, Naruto's promise to Kizuna kept him going. He even received Kizuna's old Eros HHG, a few weeks after the other boy's departure. Naruto couldn't use Eros effectively due to its unknown capability. But his growing compatibility with the HHG is what kept him around.

That is, until the wheels of fate turned…

Naruto opened his eyes and looked to the side, seeing that it was past lunchtime. It was his off day, and he overslept.

"Bathroom…" the blonde groaned.

A few minutes later, he walked out the restroom, completely refreshed and wearing casual clothes. Unfortunately, he was also bored out of his mind. It's been a common recurrence these past few years, due to multiple factors. He hadn't heard from his friend Kizuna; and he hadn't seen that silver-haired, red-eyed girl at all.

And then there was Dr. Nayuta. As Naruto grew and his mind matured, he began manifesting abilities such as a healing factor and sensing negative emotions. Thanks to the latter ability, he began getting an uneasy feeling from the doctor. Whenever he was close to her, he could feel some kind of darkness emanating from her. It was unsettling, and her aura further soured Naruto's motivation.

And now, Naruto wanted out of the lab.

For as long as he could remember, Naruto's life, from beginning to present, had taken place within Nayuta's lab. Sure, he was let outside on occasion for some fresh air, but never off the premises. Naruto originally never held an interest in the outside world, but his curiosity got stronger and stronger as he got older.

Nayuta's constant predatory looks didn't help either.

After getting a box of pocky and a can of carbonated green tea, he walked down the hallway. Digging in his pockets, he whipped out a doujin and read it. Ever since reading that erotic comic Kizuna swiped all those years ago, Naruto had been curious about various girl's enlarged chests, to the point of fascination. There was also the fact that whenever he thought of a girl with a large chest, he sees a red-haired woman whispering to him as if he was a baby. He would see her glowing violet eyes until she buried his face in her soft chest.

Naruto blushed at the thoughts about the unknown woman, before bumping straight into a wall. Rubbing his head in pain, it ceased when he heard voices coming around the corner. Not wanting to be caught with a book that got males (and kids) into trouble, he eyed a nearby vent. Leaping into it, he opened the grating, slipped into the vent, and closed the grating behind him.

Grumbling, he crawled through the vent, stopping every now and then to munch on some pocky, and sip some tea.

"It hurts…"

Naruto stopped as he heard a female voice. Suddenly swallowing, he crawled toward the voice to investigate. Arriving at a dead-end, he looked through the grating to find himself in the private lab of Dr. Nayuta. She was among other doctors and aides who were conducting tests on the Heart Hybrid Gear with one of the new test pilots. But Naruto frowned when he heard the pain in the current test user's voice.

"It hurts…" the test pilot's voice echoed through the room, "I can't take any more!"

"Continue, please." Nayuta's voice was heard next, flat, cold and uncaring.

'What's going on?' Naruto wondered, a sense of dread filling his stomach, 'That girl sounds like she's in pain? But why is it from the Heart Hybrid Gear?'

Moving to the side, he eyed a screen showing the image of the test pilot flying through the air. Upon closer inspection, the blonde saw that the test pilot was looking worse for wear. She was sweating profusely, and her nose was bleeding.

"B-but…my Hybrid Count…!" protested the test pilot, her pained breaths scratching harshly through the room.

"Very well," Nayuta relented, tapping several buttons on her tablet, "In that case, we'll take control of the Gear from here…"

'Wait, what?' thought Naruto, alarmed with wide eyes. A whirling sound was heard through the screen, 'Why isn't she ending the test? That girl sounds like she's in no condition to continue!'

"D-Dr. Nayuta? No…Doctor…stop! What are you doing?!" the test pilot cried, her voice suddenly filling with terror.

Naruto's heart-rate spiked at her fearful yelp. The room below him took on a red tint with alarms blaring.

"Output increasing," one of the aides reported, her tone even, "Count has entered the danger zone."

"Someone, stop! Stop it!"

"Subject's vitals are yellow," a doctor chimed in.

"No! I don't want to die! I don't want to die! Someone, anyone…anyone…!"

"Count remaining: Seven. Six. Five. "

"I'm going to…!"

"Four. Three. Two. One."

"Nooooooooooooooooooooooooo-!"

"Count zero."

The screams stopped, leaving only the roar of an engine.

"Vitals lost."

"Increasing maximum output value by 5.0."

"Thank you. That was good data."

If one could hear over the alarm, they would hear someone scrambling to get out of the vents. That person would then pop out, and make a beeline for the bathroom they were just in. The sounds of one hurling the contents from their stomach echoed throughout the room.

It was on that day that Naruto met the REAL Nayuta Hida.

(Medical Bay, a few days later)

The door to the medical bay opened and Naruto stepped in. His eyes, with dark bags underneath and dull with lack of sleep, wandered around the room until landing on the corpse of the poor girl from that day's testing. Moving closer, Naruto smelled the stench of the corpse's burnt flesh, and covered his nose.

"I'm...sorry. I never imagined, in a million years…that Dr. Nayuta would be capable of this." Naruto murmured, his eyes watering, "I don't...I don't understand. Why did she do this? The doct- Nayuta never told us that when your Heart Count depletes, you die. You were in pain, yet she forced you to continue…"

Naruto openly cried, mourning the loss of his potential comrade; he didn't even know her name, but he'd listened to her beg for mercy. She was older than him, yet still so young. In some way, he blamed himself for not stepping in. He was in too much shock at what was happening to step in. But even if he had, there was no way to prevent the poor girl's death. For the first time in his life, Naruto felt powerless.

But that empty sensation was quickly replaced by anger; fury at the woman responsible for this loss of life: Dr. Hida Nayuta. Her creation, the Heart Hybrid Gear, was supposed to save people, not destroy them. It was supposed to bring light to the future, not at a sacrificial cost.

'This wasn't what I signed up for!' Naruto thought furiously, banging his fist on the table, "Not of us signed up to be expendable test subjects to be thrown away!"

He had to warn the other test pilots. But they wouldn't believe him. Sadly, age was a factor, for adults had an unfortunate trait of not believing children.

The other avenue was to become stronger, outside the labs. He had to get out of Nayuta's thumb, and train himself to help the future pilots of the HHG. Maybe, somewhere in the outside world, there was a way to keep the pilot's HHG Count from hitting zero.

But was there such a way?

Before Naruto could dwell on it further, he heard voices outside the room. Panicked, he dove into a closet, just as the door opened. Nayuta swept inside, followed by one of the aides that oversaw the operation. Naruto pressed himself against the back of closet, hiding his body amid the spare lab coats inside.

"Doctor, is this really okay? This is the second test pilot to die from a depleted Hybrid Count."

"It's fine. Their deaths will prevent many others," Nayuta informed the aide, "Thanks to the data, we can now slow the progression of the decreasing Hybrid Count."

This did not seem to completely appease the assistant. "Doctor…My concern is that the first time was an accidental discovery. This one was…deliberate," she protested, "If this gets out-!"

"Even if the World Security Council learns of this, they'll still accept the Heart Hybrid Gear," Nayuta stated firmly, with absolute certainty, "It's the only weapon that will be able to stand against the invaders of the Otherworld. A few casualties are acceptable by their standards. Science requires sacrifice after all."

"But ma'am, surely it's not the same with your son, Kizuna?" the aide countered, "I mean, he still had his Heart Hybrid Gear when he left. But even that was no match for the Magitech Knights, and he-"

"Such is the result of his low capability with the HHG. He was a foolish boy, and paid with his life for trying to be a hero," Nayuta cut across her coldly, "While his death was unfortunate, I have no time to mourn. The Otherworld's attacks are getting stronger."

"And now his HHG is with Naruto. You're not going to sacrifice him too, are you?! His potential is limitless, and his HHG capability is still rising!"

"Yes, and I believe it's thanks to that dormant core we found in him," Nayuta declared, heading towards the door, "Such a valuable artifact will be useful for the future. As such, we must remove and activate it."

"But doctor! That core is close to the boy's heart." the aide warned Nayuta, a shocked look on her face, "If you attempt a procedure, it might kill him!"

"…If that happens, so be it. Like I said, science requires sacrifice. At the very least, Naruto will join my son after it is over."

The aide looked uncertain as she followed after her boss, closing the door behind her.

After a while, the closet door opened, and Naruto stumbled out, white-faced and trembling. "Kizuna is…dead…?" He fell to his knees, memories of his time with Kizuna surfacing in his mind. The blond had sent many letters, yet he hadn't heard back from him. Just what the hell happened after Kizuna was thrown out of the lab?!

But what Nayuta had just said sealed the deal for his future. His life was pretty much forfeit. It was clear that Nayuta did not care who died, as long as she got results.

With that in mind, Naruto got up and strode towards the table. Eying the HHG Core that the once belonged to the test pilot, he grabbed it and exited the room.

(Escape)

"Dr. Nayuta. We can't find Naruto in his room," reported Nayuta's aide, "He isn't even in the bathroom."

"He must be wandering around, like he always does. That's fine," said Nayuta, waving the report off, "The operation to remove his Core will be done later tonight."

Nayuta and the aide entered the lab where they oversaw their experiments; i.e. the recent one where they outright killed their test pilot. "Ketsuya, bring up the notes about the dormant Core within Naruto," she requested.

"Yes, ma'am," the addressed aide obliged, using her tablet to bring the information up on the screen, "What we know so far- oh!"

Nayuta frowned at the aide, wondering why she'd stopped. She followed her gaze to the side of the room to see Naruto sitting in one of the lab chairs. Normally, nothing would faze the scientist, but even she couldn't keep the shock off her face. The room was secured to the extent that no one could get in without Nayuta's faceprint.

So how did Naruto manage to get in?

"Hello, Doctor," he greeted, tearing his eyes from the main screen with a sideward glance. The blonde had a smile on his face, but his eyes did not match it. He is currently wearing the HHH Eros suit, with the belt and the armor parts from his Proto HHG Suit. There was also a bag at his feet.

"Naruto. What are you doing here?" Nayuta questioned, as a group of doctors and aides arrived behind her, "This is a restricted area."

"Yeah, I guess it is!" responded Naruto brightly, "I can sure see why!"

Nayuta shook her head, "Regardless, you will answer, or you will face disciplinary-"

"Why'd you do it?" Naruto interjected.

"Do what?" Nayuta inquired, clearly confused.

"Kill that girl yesterday."

The doctors and aides behind Nayuta suddenly looked nervous. Nayuta scowled at Naruto knowing such sensitive information. The question still on her mind was how did he know. Then again, Naruto was barely seen around the labs yesterday.

"You never cared about us test pilots," Naruto stated, his light tone completely at odds with the cutting weight of his words, "You overrode her Gear, and forced her Hybrid Count to hit zero. You never told me about Kizuna dying, and didn't even mourn his death from what I heard." His smile slid off his face, "And now, you plan to kill me for the Core inside me."

"..." Nayuta didn't respond immediately. Her eyes traveled the room before alighting on the vent grate above. "I see. So, you've been sneaking around," she noted, pursing her lips in disapproval, "Learning classified information-"

"Like I care about that. You're going to kill me like that girl," Naruto interrupted her again, his anger showing, "You think that just because the Otherworld is attacking, you can just get away with sacrificing? To hell with that."

He held out the HHG Core that belonged to the decreased test pilot.

"Hey! That's the-" one of the aides shouted, but Nayuta raised her hand to silence her.

"Naruto, progress can't be made without sacrifices. Without breaking limitations on experimentations, data cannot be obtained," she explained, "That is the power of science. For PME life, thousands more will live. That is an unavoidable fact."

"And Kizuna was one of those sacrifices?" growled Naruto.

"...Yes. But it wasn't in vain," she replied, "From our many tests, we know that his physiology is vastly different from yours. That's how we know that males have a low compatibility with the HHG, unlike the female test pilots here. Except you." She smiled. "You're special."

"How? How am I the only one that is special?" countered the boy angrily, "You chose all of us to wield the HHG to protect the world! Sure, I'm special, but so was Kizuna! And so is that girl you don't want me around!"

"You and Aine are special, yes. But Kizuna was barely a blip on the radar. He was nothing like you, or her. If you want to know the truth of your origins, then come with me."

Nayuta held her hand out, wearing a reassuring smile. She was the only one who knew where Naruto came from. But Naruto was in no mood to accept her generosity. She was planning a life-threatening procedure on him. She may have all the answers about his past; before his time in Nayuta Labs. And he can see it: a darkness behind her friendly demeanor.

"..." Naruto sighed loudly, and slung his bag over his shoulder, "I'll take my chances outside."

Opening his hands, he tossed a few medium-sized balls in the air, scattering them at the feet of the scientists, whereupon they exploded into yellow-colored smoke. Naruto quickly donned his helmet as the scientists in the room started to cough and gag. The smoke was foul-smelling, taken from the sewers beneath the lab.

With the smoke incapacitating Nayuta and employees, Naruto quickly used his suit's flight capabilities to zoom out of the room. He nearly hit the wall outside, but he vaulted off of it and continued on his way.

Naruto knew Nayuta Labs like the back of his hand, so he had no problem finding his way out. Plus, his smelly smoke-bombs will keep Nayuta from hitting the base alarm until he is in the clear.

Strafing around bewildered lab techs and zooming past the clueless guards, Naruto remained unimpeded into his escape. It was only when he landed in the last hallway, exit in sight, that the base alarms finally blared. The guards near the exit were surprised before seeing Naruto, who was rubbing his foot on the ground.

"Alert! Test subject Naruto Uzumaki is attempting to escape the premises," Nayuta's voice boomed through the base, "Stop and detain him at all costs!"

"Don't bet on it…" Naruto murmured, looking from the speaker to the guards in front of him, "If you don't want to get hurt, move!"

"Sorry kid, but the Boss pays us too much to listen to that advice!" one of the guards countered, he and his partner raising their guns, "Get down on your knees and put your hands on the ground!"

"Don't make us hurt you, kid!" the other guard snapped, his gun trained at Naruto's head.

Naruto gritted his teeth and went down on one knee. He then slowly put his hands on the ground, with his other knee close to the floor. The guards closed in, convinced that Naruto was giving up. Suddenly, Naruto shot forward between them and delivered a spinning split-kick to the sides of their heads. As the two guards slammed into the walls opposite each other, the boy continued his path, never losing his momentum.

He would escape. Nothing would stop him! Just ahead of him, the security blast door began to close, but Naruto was not worried. With a determined look under his helmet, he pressed a button on his suit's utility gear

'BOOST LOADING'

The suit's tron-lines glowed red, increasing the jets under the soles of the boots. Naruto sped towards the exit, flying low to avoid the bullets whizzing past him. His eyes were laser-focused on the exit, with his ears telling him if the bullets were going to hit him or not. Suddenly, the barrage ended, but Naruto didn't bother to look back to see why. He was several feet from the closing blast doors. He was so preoccupied that he didn't see a hand reaching out towards him.

"AAAAAAAAAAAAAAAAAAAAAARRRRRHH!"

With an additional boost of power, Naruto shot forward and dove under the blast door at the last second. They completely sealed shut behind him with a dull thud. Paying no mind to the sound, he crashed through the front doors and lifted off into the air with the Nayuta Lab facility behind him.

He was free.

As he cleared the island where Nayuta Labs was located, his adrenaline rush died down. At the same time, a loud electronic wailing resounded through the air from behind him.

"Wh-what?!" Naruto shouted, as his helmet's HUD suddenly flashed from blue-green to red.

What kinda alarm is this?! Upon listening closely, he suddenly recognized it. He'd heard it a couple of times inside the labs, albeit far off back then. Now that Naruto was outside, he was hearing it full force. Yet he didn't know what it was for; he'd tried asking Nayuta about it, but she only told him not to worry about it.

Now, however Naruto found himself worrying what the siren could mean. Before he could dwell on it further, a shadow suddenly appeared above him, making him look up. As the alarms now blared directly inside his helmet, he saw a massive object bearing down on him.

Without even thinking, he raised his personal shields, the dome of glowing hexagons flaring up in time just as the object collided with him. The impact was so strong that it sent Naruto back down to earth; to a different Megafloat. He bounced off several skyscrapers, skidded along the ground, and crashed into a statue in a park. The impact knocked Naruto into unconsciousness.

(A while later…)

Naruto opened his eyes blearily, finding himself in a city with burning skyscrapers. Blinking through a haze of mind-muddling, he saw his HUD fizzle in and out, further bothering his vision. Taking his damaged helmet off, he tried to get up, but his body was in so much pain that he had to move carefully. There was also a loud ringing in his ears. He used the damage statue behind in as a support to get back to a vertical base. He shook his head and held it, wondering what happened to him.

Feeling something fall in front of him, he bent down and picked it up. It was the utility belt that had been a part of his Proto HHG suit, now with its casing cracked severely and lights dimmed. He grimaced in agitation; the only one who could fix it was Nayuta, but there was no way he was going back to her for anything.

Before he could think on what to do next, a large machine landed in front of him. Naruto recognized it as the Magitech Knight that came from the Otherworld. It was much larger in size than the humanoid-sized test dummies than Naruto and Kizuna sparred against. It was as tall as a three-story house, and took on the appearance of an armored knight from fairy tales. The blonde noticed the massive sword it carried in its hand, seeing it was the same object that hit him while he was flying in the air.

Naruto was rooted to the spot, the feeling of powerlessness returning as the knight raised its sword. His vision and senses were severely compromised from the surprise attack and crash. Neither Nayuta nor the other lab aides had told him that the Magitech Knights were huge towering constructs. Hell, they hadn't even shown videos of them in action. He'd thought he was prepared to take them on, but his encounter showed just how unprepared he was.

Naruto tried to move, but his blurry vision made him disoriented, making him fall over. Groaning, he looked up to see the Magitech Knight preparing to bring its sword down on him. Defenseless, Naruto closed his eyes and waited for the inevitable end; to join Kizuna in the afterlife.

In the end, I guess I am powerless after all…

But the blade cutting into his flesh never came. He opened his eyes to see an armored individual besting the Magitech Knight with a beam attack. He then saw his savior leap into the air, and execute a flying side kick. The Magitech Knight brushed off the attack, but exploded instead from the previous attack. The light from the explosion shined on the armored individual, allowing Naruto recognize its form.

"The…legendary warrior…Spyros?" he murmured, reaching out to him with his hand.

When Naruto blinked again, Spyros de-transformed to their civilian form. Moving closer, the boy saw that Spyros was a man with spiky-blonde hair like him. He also saw that the man was dealt a fatal wound on his side of his body. Blinking again, the man picked him up and carried him away. Feeling safe in his arms, Naruto sank into the realm of unconsciousness again.

When he next awoke, he found himself in the back of a pickup truck. His body was still weak, and it hurt to move. Looking to the side, he saw the same blonde-haired man, talking to a dark-haired woman. He paled when he saw that the dark-haired woman looked an awful lot like Nayuta. Panicking inside, he squirmed, drawing attention to the two. As she drew closer, Naruto saw that she was, in fact, not Nayuta. Instead, it was a younger woman who reminded him of Kizuna.

She was speaking to Naruto, but he couldn't hear what she was saying. His ears stopped ringing, but his senses were still disabled; barely hearing any sound. Her voice seemed so far off.

Once again he drifted between consciousness and unconsciousness, like a scene skipping in a movie. The young Nayuta look-a-like looked back towards the man, who handed her a briefcase and patted her on her shoulder. She reached out towards him, concern written on her face. He had a bunch of firearms on his person, and was clutching at his wound. He ruffled Naruto's hair with a kind smile on his face and whispered something to him. Naruto's hearing was still compromised, so he couldn't hear what he was saying. With a nod, the man headed towards the incoming Magitech Knights that dropped in from afar.

Naruto wanted to go after him, but he couldn't move. All he could see was the back of the man, who was preparing to make his final stand. He wanted to help him, to save him, but his vision got blurry. Soon, he fell back in unconsciousness again.

(Unknown Location, a day later)

Naruto slowly opened his eyes and held his head. Sitting up, he saw that he was lying in a bed, in a room not familiar to him. The room was spartan, with just desk, a closet, a bookcase and a ceiling light. He was still clad in his HHG suit, and the bag that he'd taken with him was found on the bedside table, alongside a briefcase. When his hearing returning to him, he suddenly heard shouting from down below.

Throwing off the covers, he slipped out of the bed. Opening the door, he exited the room, coming into area that appears to be a second floor to a building. Crawling to the stairs leading to the first floor, he crawled on the ground, passing another bedroom, the bathroom, and a closet.

"Reiri," a familiar voice floated upstairs, causing Naruto to freeze, "If you know where he is, you must tell me. Our fight against the Otherworld depends on-"

"No, I don't know where he is! And even if I did, I still wouldn't tell you!" a different voice shouted, feminine in nature, "For the last time, get the hell out of here!"

Naruto slowly looked through the bannister, and was horrified when he saw Nayuta at the doorway. But blocking her way was that same young woman from before.

"I know you still blame me for Kizuna's death, but it was his choice to-"

Reiri, expressing much anger and hate, slammed the door in front of Nayuta's emotionless face and locked it, before sighing exhaustedly and looked towards the stairs. She saw a pair of blue eyes, and the faint glow of the tron-lines on Naruto's suit.

The blonde jumped back at being spotted, his heart thumping madly in his chest. He scrambled back to his room, while hearing the sounds of Reiri coming up the stairs. Naruto slid across the floor and under the bed, just as Reiri came in through the door.

"Naruto, wait!" she called out. She got down on the floor, and she saw Naruto under the bed.

Naruto retreated further back as she got close. He was extremely cautious of her, especially since he saw her with Nayuta.

"Naruto, it's okay. You're safe here," declared Reiri softly. However, she saw that Naruto was not biting, "You don't have to worry about that woman. She stopped being my mother after she abandoned my brother, Kizuna. Please, just trust me." She held out her hand, hoping that Naruto would take it.

Naruto hesitated, but curiosity dawned on him when she mentioned that she was Kizuna's sister. He remembered Kizuna talked about her in the past. Looking carefully, he also saw that she had the facial features of Kizuna, as if she were a female version of him. After taking in her appearance for a while, he accepted her hand. She helped pull him out from under the bed, and lightly dust him off.

"Thank you...for saving me," he said, his voice hoarse from such a long period of silence.

"It wasn't just me who saved you," she corrected him with a smile, "It was your father."

"Wha-" Naruto's mind went into a whirl, "That man, who was the legendary warrior Spyros, is my father?"

"Yeah. He told me so, before he went to cover our escape," Reiri said, digging in her pockets, "Here the proof. Those whisker-marks on your cheeks sure look familiar."

She pulled out a photo and handed it to Naruto. The photo was of a man and woman, with a young child. His eyes widened when he recognized the two adults. The man, of course, was the same one from before. The woman was the same red-haired woman who showed up in the memory; whether he saw a girl with big breasts. The baby in the picture had the same whisker-marks on his cheeks as he did.

Then he remembered the man heading into battle with the Magitech Knights; without his armor.

"My father…is he…" he asked, knowing the answer and trying not to cry.

"Yes. Your father, Minato Namikaze, was helping with the evacuation when the Otherworld invaders attacked. During the battle, he sustained a severe injury that would've killed a normal human being. Everyone tried to get him to stand down, but here were more people that needed to be saved, and insisted." Reiri explaining with sadness in her voice, "You, Naruto, were one of the last ones he saved. He was surprised to see you, after spending years looking for you. He left me with you, while he went to manually detonate an EMP that missed the enemy ship. Last I heard, he was successful, but his injuries were fatal. The enemy knights bared down on his position when he was activating the EMP. Despite winning against them... He hasn't come back."

"It was my first time meeting my dad." Naruto said looking at the picture dully, yet his voice is slipping with sorrow, "I never thought it would be like this."

"Well, he was a hero, and died as one. Regardless of what my mother believes, Kizuna died the same way. He used whatever his HHG could do to save as many people as he could." Reiri said with sad smile, her eyes hinting grief for her late brother and Naruto's now deceased father, "It was Kizuna's own choice, and it has nothing to do with Nayuta Hida…"

The two were silent for a time, with Naruto processing his thoughts.

"You think I'll die if I continue on the path to being a hero?" Naruto wondered aloud, looking at the woman as if he sounded pleading, "Like Kizuna? Like my father?"

"Who knows? Still, whether you die or not as a hero is up to you," Reiri said, climbing to her feet, "Did you know? While the masses call your father the legendary warrior Spyros, he normally introduces himself as Kamen Rider Spyros."

"Kamen…Rider?" he repeated.

"Yes. It's a bit silly, especially when I learned that the Kamen Riders were part of a long forgotten media franchise ages ago," Reiri laughed heartfully, almost wiping out the sadness in the atmosphere, as she headed to the door, "It appealed to young audiences all over the world. They were a group of heroes dedicated to saving people. Looks like your father was trying to live up to their example in real life. I guessed he wanted the name Kamen Rider to be symbolic with hope. The question is, will you?"

With a wink, Reiri exited the room. Naruto looked to where she exited, before looking back at the photo. Then, he looked up from it the see the briefcase his dad had on his person before handing it to him. Tears fell from Naruto's eyes, thinking of it as his father's only gift to him.

Settling back on the picture, he eyed his father with a determined look on his face, "I will finish what you started…"

Setting the picture to the side, he went over to the briefcase and opened it. Inside it was a unique-looking utility belt that looks similar to his old one. Also inside was flip-phone, a camera-shaped device, one that looked like a binocular and six pieces that looked like they were meant to be combined.

"Hero, huh?" Naruto mused and shook the items out of the briefcase, "Now where's the instruction manual?"

Grabbing the belt, he noticed a lever in the front of the belt; and there were slots for the items in the case. He slotted the camera and binoculars into the appropriate slots on the sides of the belt, taking an oddly visceral sense of satisfaction in the resultant *click*. Then, he took the weapon parts and inserted four of them into the back of the belt, the other two on the sides. Next, he attempted to slot the phone into the front-

'ERROR'

Only for the belt to spark and knock Naruto back onto his ass with surprising force.

"Oof!" Naruto groaned, "Well that happened. Guess I gotta put it on first…"

Getting up, he grabbed the belt and attached it around his waist.

'DRIVER ON'

"Okay, that works. Now-" Naruto murmured, and attempted to insert the phone in the belt again.

'ERROR'

"GAH!"

Naruto was knocked back again, while the belt flew onto the bed. He grimaced in pain, holding his sides.

"Again?" Naruto groaned, getting up and went to the bed, "What's missing from this puzzle?"

He picked up the belt and equipped it to his waist again. 'DRIVER ON' Thinking that he missed some key components, he shook the briefcase until two new items dropped out of it. But Naruto wasn't convinced, and checked the case more thoroughly, only to see that it was empty. He picked up the two objects, differently colored cylinders with twisting caps on top. He shook them, hearing something rattling around inside. Curious, he continued to shake them, but they did nothing else. Noticing a button on each of them, he pressed them, causing them to glow.

"I wonder…" Naruto mused, noticing several more unfilled slots on the sides of the belt and inserted the objects into them.

'HEART/HYBRID' 'MAGIC/TECHNOLOGY'

'CROSS LINK'

Suddenly the belt hummed and the phone, lying on the bed, suddenly responded, sprouting insectoid wings and flying towards him.

"Whoa!" yelped Naruto, ducking so that it just barely missed his head.

He turned to see the phone coming at him again, and crossed his arms to block it. But instead, the phone settled gently into his hand.

"Huh…" he muttered, examining the phone. He opened it to see the numbers 3, 6, and 7 flashing in a certain order. He dialed '3-7-6-7', the numerical code for 'EROS', before closing it. He turned it over a couple times, before noticing a button on the side of it and pressed it.

'HEART HYBRID GEAR X'

A melodic tune played as a wave of energy erupted from the phone, enveloping the room around Naruto. It pixelated the area before returning it to normal. Suddenly, a grin appeared on Naruto's face; excitement mixed with determination filling his being.

'ARE YOU READY?'

"Maybe now I can-!" Naruto said excitedly, determinedly readying the phone, "Henshin!"

He slotted the phone into its dock and slammed it down, parallel to the rest of the belt. Then, he pulled the lever that was on the side of the belt. A bright light grew from the belt before completely enveloping Naruto; his grin never leaving him.

'THE BURNING-HEART WAR MACHINE! WAKE UP, SPYEROS! IGNITE!'

PROLOGUE END

Next time - Chapter 01: The Eros in Sypros

Six years has passed since Naruto's escape from Ataraxia. Over the years, he's continued his father's legacy, making a name for himself as Kamen Rider Syperos. Called upon by Reiri, he finds himself coming back to his first home that is now an Academy; with the sole purpose of training future pilots for the Heart Hybrid Gear. It's quite the homecoming for Naruto, as he meets an old 'friend' and new acquaintances. Also, the Megafloat comes under attack, he has to massage a girl to recharge her power, and goes wild as Kamen Rider Spyeros. Yep, just another perverted day in the life of Naruto Uzumaki!

-After-chapter notes

Thank you for reading! And no, I do not hate Kizuna at all. He's cool, and has his badass moments.

The next update will be The Fox of Overwatch; followed by Shinigami's Devil Huntsmen, Eros Overlord, and the Maelstrom of Sister New Devil. I WILL BE STICKING TO THIS!

I'm thinking that Sylvia's place in the harem should be replaced by a lovely busty lady. Right now, I'm thinking either:

Alisa from God Eater

Mirei from Valkyrie Drive

Chikage from Triage X

But I'll let you guys participate as well. Enter the name of a lovely lady (from an anime or video game) in the review section (or PM me with the story title in the subject line). After chapter 4 of this story, I will post a poll with all ladies in it, and everyone can decide who will take Sylvia's place.

If only you guys saw the look of absolute horror on my place when Sylvia was chosen for Team Amaterasu; with the implications painfully setting in. Then there's the 5th OVA… *goes to find a sick bag*

With that said, peace out, ja ne, and see you in the next update (and/or stream)!

-Shameless self-promotion

Subscribe to me on YouTube at SoulEmbrace2010 GAMING. I make Let's Play videos, stream video games (primarily PS4 games for now), and reaction videoes. Join me on my nightly streaming sessions for some Q&A.

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Coming soon: Soul Reacts to RWBY Volume 5 Chapter 5

Released: Monday, November 20, 2017

Beta-ed by Vexacus905: November 26, 2017