I don't own Highschool Dxd or Supernatural.

Three men stood in old lab. One was a man with a beige trench coat, and he was covered in blisters and his own blood.

Castiel stared blankly at a wall, a wall with a unique symbol painted with blood it. Dean looked from Castiel then to Bobby, before the former handed the later a piece of paper.

"Ianua magna purgatorii, clausa est ob nos lumine eius ab oculis nostris retento sed nunc-" Bobby read off the paper, to open the door to Purgatory.

'Everything I do…I always manage to cause damage with everything I come in contact with.' The Seraphim thought, as its bloodied vessel staggered forward. 'I know I'm going to somehow mess this up too…I know what to do. To make sure nothing stays here.' Castiel thought, as it glanced back to Dean. "I'm sorry, Dean." The Seraphim said, before it faced forward and watched as the blood symbol burn fiery red.

Castiel staggered forward. "-Creaturae terrificae quarum ungulae et dentes nunquam tetigerunt carnem eius ad mundum nostrum nunc ianua magna, aperta tandem!" Bobby finished.

The Wall with the symbol began to pull itself open, revealing a dark void that seemed to pull everything close to in inside it.

"Goodbye, Dean." Castiel said. Confusing the Hunter, before he noticed the Seraphim was walking towards the entrance to Purgatory.

Dean's eyes went wide. "Wait, Cas!" He announced, but Castiel fell into the black void, before it sealed up.

A man on the other side of the world randomly looked in a direction. 'That was unexpected.' Chuck thought as he looked back at the T.V. 'You sure have a way to mess with things, Castiel. Opening Purgatory, then absorbing the Leviathans, then changing the world in my name, and now throwing yourself into the void between Earth and Purgatory.' God thought with a slight smirk. 'You sure now how to change things up, don't you?' Chuck mused, before he snapped his fingers.

'I'm not going to resurrect you. Oh, no, no, no. I've done that far too many times.' God thought. 'How about…a bit of a story change. I get some entertainment, two stories…with the price of one.' Chuck mused with a smiled, as he leaned back, grabbed the remote and turned on the T.V. "This will be so interesting." He commented.

In an entirely different world

There was a seventeen year old male with average height, short brown hair and light brown eyes. He stood in a park with a water fountain in the center of it. Issei looked at the fountain in remembrance.

"Right…This is the place. This is where I had my date with Yuma." Issei muttered. "Yuma, I don't want to believe that is was just a dream…" He said.

Issei glanced around when he heard the sound of loud popping. He saw several lampposts, with their light bulbs exploding. Issei looked around in confusion, before he dug a finger into his ear when he started to hear a quite high pitched sound.

"Huh…" The teen sounded, before he became tense as the high pitched sound got louder. Issei grabbed at his ears and flinched as the sound began to get grading. The water in the fountain began to shake as the concrete forming the fountain cracked. And then in an instant it all stopped.

Issei was kneeling on the ground holding his head, before he slowly let go. "W-what was that?" He asked himself.

'My Apologize…' voice answered, causing Issei to look around. 'My voice can be a bit…difficult to understand, by most species…' the voice added.

"Well, this is unfortunate. Here I am, running into someone like you in this town." A man in a trench coat commented.

Issei felt a sick feeling coming from the man, and took several steps back. "Trying to run away? Tell me, who is you master?" the man asked.

'Master? We are our own Master!' A dark watery voice snapped.

Issei turned around and ran. "What the fuck is going on?!" He questioned to himself, but stopped when he saw black feathers floating down. '…This is just like hers.' Issei thought, before the man with the trench coat landed in front of him, but now he had a pair of black raven-like wings.

'Corporeal wings?' The voice said unsure. 'The very idea that an Angel has corporeal wings is…ludicrous.' It stated.

"This is why I can't abide lower-class beings." The man commented.

"What is going on?" Issei muttered to himself. 'Is this a dream?' He thought.

"Hmph, your master and friends are nowhere around..." The man informed.

'Master…Friends…We are the top. We are the Sharks in this world!' The dark watery voice announced.

"…Nor are you showing any signs disappearing, nor are any magic circles being deployed." The man listed off. "My analysis of the situation is that you are a Stray." He informed, as he raised his hand and formed a Spear of Light. "In which case killing you create no problem." The man informed.

'Run…Run!' the two voices yelled. Issei turned around quickly and ran, not really going against the voices. He didn't get too far, before a blue spear head protruded from his stomach.

"Gachk!" the teen sounded, as he fell to his knees.

'Get up! We have to vacate the area…Move you pathetic Human!' The two voices ordered.

Issei reached for the spear and grabbed onto it, only for it to burn his hands. "You can't pull it out, right?" The man asked tauntingly. "To your kind, light is a deadly poison. Do you want me to pull it out for you?" the man questioned, before he placed his hand on the back of Issei's head and grabbed onto the Spear, and then violently yanked it out.

Issei held his bloodied wound. 'What the hell is this? Some twisted nightmare!? I don't want to die now!' The teen thought, as he panted and coughed.

'You don't have to die…not now…not ever…' the voice informed.

"That's a…that's a lie…" Issei muttered.

'I…We have to power to help you, Issei Hyoudou.' The voice stated.

'…I-I'm just a pervert...' Issei thought.

'Every life deserves to be saved…Then Consumed!' The two voices spoke.

"I apologize for giving you such pain. It seems like I missed your vital organs by just a hair." The winged man said condescendingly.

"Then…how do I get this power?" Issei questioned, getting a weird look from trench coated man.

'All you have to do…is say Yes…' the two voices informed.

The Fallen Angel formed another Spear of Light. "I'll be more accurate this time." The man informed.

"…Then…Yes." Issei said.

"Yes, what? Yes to me killing you?" the Fallen Angel asked with a raised eyebrow, before he shrugged and prepared to throw the Spear of Light.

But before he could do that, Issei's body began to glow in a bright white light. The Fallen Angel held his ears, when a high pitched sound echoed off the area, before the light engulfing Issei began to darken to a pitch black.

When the Light dimmed, Issei was still on his knees. Issei slowly reached for his stomach and felt for his wound. He pulled his hand back and looked at his blood, but his eyes went wide at what he saw. Instead of the crimson red blood he knew he had; his blood as a pitch black ooze-ish liquid.

"What is this…?" Issei asked curiously, for some reason he wasn't startled by the fact his blood was different. He was just curious.

"What was that? Hmm, calling for reinforcements?" The Fallen Angel asked with narrowed eyes. "It won't matter. You'd be dead before they even arrive." He stated.

"No." Issei stated, as he stood up surprising the Fallen Angel and the hidden Rias plus her peerage.

"No? No to what? Me killing you? Are you begging?" The Fallen Angel asked incredulously, though he was smirking.

"No you pathetic little creature." Issei said, as he glanced down and watched as his wound seal up, before he fixed his school uniform. "I was talking about your statement, 'Calling for reinforcements', I don't call for anything." He informed. "In fact…if I tried to explain to you the process of what we just did, you're little mind wouldn't comprehend it." Issei said in a condescending, yet charming manner.

"Pathetic? I'll show you pathetic! You lowly Stray Devil!" the Fallen Angel yelled as he reared his Light spear back.

Issei cracked his neck, before a blue light spear impaled him with enough force to send him flying back. The teen was impaled to a Tree.

Issei smile fully as he was pinned to a tree. "Alright. Enough with the tricks! Let's do this like real monsters!" He announced, as he began to move forward. In an instant another light spear impaled him.

The Fallen Angel watched with satisfaction as steam began to rise from the Spears of Light, meaning that they were burning the Devil.

"Hahaha!" Issei laughed, looking like he was relishing in the pain, before he looked at the Fallen Angel with a smile. "You gotta do that again…That tickled." He informed with a slight scowl, as he walked forward, pulling the Spears of light through himself, causing lots of black ooze to come out of his wounds.

"You're a Devil…" The Fallen Angel began.

"Now you're just flirting with me." Issei replied with a smirk.

"You should be in pain…the Light should hurt you more than anything! What are you?!" the Fallen Angel demanded.

Issei shrugged, before he lifted on hand up. "A being of Light and righteous faith…." He trailed off, as he lifted his other hand. "…A being of Blackness and all-consuming hunger…" Issei said, before he glanced up. "…Or a Human pervert, with a shit ton of power." He added. "A Seraphim… A Leviathan…Maybe a Human…Or all of the above…truth is, I have no idea what I am." Issei admitted, taking slow steps towards the stupefied Fallen Angel. "But…I do know what I'm not." He informed.

"I don't care what you are! Die!" the Fallen Angel yelled, as he threw a spear of light at the teen.

The Spear of Light stopped an inch from Issei's face, as the teen caught it with his bare hand. "You're boring me…Find something else that can hurt me." Issei instructed, as the Spear of Light in his hand flickered and disappeared.

The Fallen Angel looked at the teen with wide eyes. "Nothing…Hmm." Issei sounded, as he tilted his head to the side as black vein-like markings began to move up his neck. "So even in this world, we're still the Apex Predators…interesting." He commented, before he held up his hand at the Fallen Angel.

"Who are you?" the Fallen Angel questioned with a glare.

"Who? What? How? All good questions." Issei replied with a shrug. "I can be called Castiel…" He began.

"Castiel…Impossible, I've seen her face and you aren't her." The Fallen Angel argued.

"Huh?" Issei sounded in confusion. "That is…undoubtedly weird." He muttered. "I can be called 'The Head Leviathan'…Or I can be called Issei." Issei said with a shrug. "Now, who are you?" He questioned.

"I'm Dohnaseek." The Fallen Angel informed arrogantly.

Issei's demeanor changed from a condescendingly charming, to a calm and dire disposition. "…Dohnaseek? I'm not familiar with that name." He stated with knit eyebrows and a tilted head, as the vein-like markings around his neck vanished. "You must be an offspring a Human and an Angel. Though that is forbidden, I guess I can't be the judge of things that are forbidden or not." Issei commented as he adopted a melancholic look. "You're a Nephilim then." He stated.

"You! You insult me! You think I'm messing around! I'll kill you!" Dohnaseek declared as he formed a large blue spear of light, before he threw it. As soon as the spear touched Issei, it vanished.

"So you want to fight?" Issei asked sadly. "I really don't like fighting anymore. Everything I seem to touch, breaks. But since you are adamant on harming my vessel for unknown reasons, I will fight if I have too." He informed.

"What the hell are you talking about?!" Dohnaseek demanded.

Issei sighed, before he pointed his finger at the Fallen Angel, like it was a gun. "Bang." He said, before Dohnaseek's arm was snapped back, like it was shot. "Bang." Issei said again, as he aimed at the Fallen Angel's other shoulder.

"Argh! What did you do!?" Dohnaseek yelled.

"I find your voice, annoying." Issei commented, as he narrowed his eyes at the Fallen Angel.

Dohnaseek gripped his throat as he tried to talk, but nothing came out. "If you're wondering why you're not able to talk, it's because I 'turned off' your Vocal cords." Issei informed, before he walked towards the Fallen Angel. Dohnaseek looked at Issei with wide fearful eyes, before his wings flared and tried to flyway.

"Contrary to popular belief, Angels don not fly in human form. I'm curious, if your wings are…clipped…can you teleport?" Issei asked calmly, before he snapped his fingers.

"ArrGH!" Dohnaseek yelled re-awakening his vocal cords, as blood spirted from his back. As his wings vanished, but looked like they were ripped from his back. "W-what the hell are you?!" Dohnaseek demanded as he took several steps back.

"…I told you…I don't know…But right now, I'm Castiel." Issei said monotonously.

"Im…Impossible!" The Fallen Angel yelled, before he turned around to run away. But as soon as he turned around, Issei was standing right in front of him.

"It is very possible…And I don't think running will save you." Issei stated, as he put his hand on the top of Dohnaseek's head. "This will be unpleasant…" He informed.

"Wait, let's talk about this?" Dohnaseek said. "You don't have to kill me." He voiced.

"You tried and almost secluded in killing my vessel. Why do you believe you deserve penance for what you have done?" Issei asked, as he still held his palm to the Fallen Angels forehead.

"I can…We can work together!" Dohnaseek informed.

Issei's demeanor shifted from Calm and dire, back to charmingly and condescending again. "What makes you think I'd work with you?" He asked rhetorically. "I'd sooner swim through hot garbage then work with a bottom feeding mutation like you. You're ugly, lazy, and a Gold digging whore…you're less than human. And they aren't much…I'd work never with you…you just…don't have the spark that interests me." Issei said seriously.

Before Dohnaseek could react, his eyes began to glow with a bright white light. A bright light shined from Dohnaseek's eyes and mouth, as the skin around his face burnt away. Dohnaseek fell to the ground, lifeless as white fire burned from where his eyes used to be.

Issei glanced around, before he knelt down and touched the dead Fallen Angel's neck. The teen's body shimmered, before he shifted to a perfect copy Dohnaseek. Issei-Dohnaseek held his hand up, before a dark blue spear of light formed in his hand. The Fallen Angel then shifted back to the teen.

"Hmm…" Issei muttered, as he held up his hand again and formed the same dark blue spear of light, but it burned at his skin. "Such interesting magic, almost a diluted form of White Light…" he trailed off as he crushed his own light spear.

"Huh, I guess we should talk to the owner." Issei commented, as he looked up and around the park. He took a step forward, before he vanished in the sound of flapping wings.

"Um…Rias-sama, what just happened?" Kiba asked unsure, as Rias and her peerage left the foliage of the trees.

"I have no idea." The Red headed devil muttered.

"What do you think he meant by Leviathan and Seraphim?" Akeno asked curiously.

"I don't know." Rias admitted with a slight scowl, not liking not knowing what was happening. "There isn't a Leviathan house…and he didn't have the aura of light like a Seraph, or the wings of an Angel…" She said, before she looked at the tree Issei was impaled on. "Is that…black blood?" Rias asked unsure.

Akeno and Koneko knelt down at the black ooze. "It doesn't look like blood. But…what is it, is the question." Rias' queen voiced. Koneko stood up and walked over to the corpse of the Fallen Angel, before she inspected it.

"…Eyes burnt out…and liquefied organs…" Koneko said quietly.

"I've never heard of a spell or an attack that did that." Akeno admitted, trying to hide the fact that she wanted an attack like that.

"Whatever it is, or what Issei's could be, will be answered tomorrow." Rias said with determination.

A gust of wind blew, as Issei appeared in his bedroom. Issei knit his eyebrows together as he glanced around, before his eyes landed on a poster on his wall. It was of a woman in provocative clothing. "…How inappropriate." Issei commented calmly as he glanced around and noticed more posters. He waved his hand and in an instant all of the posters were off the wall and stacked in a corner.

Issei glanced around, before he sat on his bed and closed his eyes.

The teen opened his eyes and saw he was in an entirely different place. Issei blinked as he glanced around, he was in a bright park, with a basketball court right in front of him. "What the! What the hell is going on!?" Issei demanded as he stood up from a bench he was sitting on.

"You're in your mind, of course." A male voice informed. "I choose to have look like this. It was the Heaven of an Autistic man who drowned in his own bathtub." He added.

Issei quickly turned around. On the bench he once sat, was a man. An average man who wore black suit pants, a white buttoned up dress shirt, with a loose blue tie around his neck, with a beige trench coat.

"Who the hell are you?!" Issei yelled in an over dramatic manner.

"I am Castiel." The man said calmly.

"Castiel...wait…aren't you the voice that talked to me?" Issei asked.

"Yes." Castiel replied.

"Wait, you said I was in my mind…Wait, why the hell, are you in my mind!?" Issei yelled again.

"You let me in." Castiel informed.

"What, no I didn't." the teen argued.

"Yes, you did. You wanted to be saved, and I offered you the power to protect yourself…When you said 'Yes' you let me in. Those are the rules." Castiel stated.

"Rules? Rules for what?" Issei asked.

"For Angels of course." The Man replied.

"Angels? That's impossible." Issei informed, causing the man to tilt his head in confusion.

"You engaged a Nephilim…or something relatively close to one, in battle. Yet, you don't believe?" Castiel asked curiously.

"Look, dude." Issei said. "I still think this is just some tripped out dream." He admitted stubbornly.

"Sorry to tell you. But this is not 'Some tripped out dream' as you call it." Castiel said with narrowed eyes. "I am…or was an Angel of the lord." He informed.

"Oh, then what the hell are you doing in my head then?" Issei questioned freaked out.

"I don't know." Castiel admitted.

"What do you mean 'I don't know'?" Issei asked.

"What part of 'I don't know' escapes your comprehension?" the Angel questioned with narrowed eyes.

"Fine then, what brought you here?" Issei asked, trying to figure out how some crazy guy got in his head.

"…I…" Castiel began, before he looked down in shame. "I did something incredibly dishonest and harmed the people I considered family because of it." He admitted with a regretful tone.

Issei looked around uncomfortably, before he focused on the man. "What'd you do?" He asked.

"I'm not from here." Castiel stated.

"No shit." Issei said sarcastically. 'Saying I'm not from here, this is my mind stupid.' He thought.

"You misunderstand." The Angel replied. "I've gone through your…memories…" He said, making a face.

"What! You can't do that!? That's private!" Issei yelled.

"Undoubtedly." Castiel said dryly getting an embarrassed look from the teen. "And, I haven't seen any memories correlating with natural disasters related to Lucifer's release. Or the two recent Eclipses…" He trailed off, getting a confused look from Issei. "...This could be parallel Universe. Similar to the one I had Balthazar send Dean and Sam too. But with no idea what Universe I'm in, I can't go back to mine." Castiel stated.

"I have no idea what you're talking about." Issei voiced.

The Angel looked up and gave Issei a serious stare, before he sighed. "You know, I've...I've been around for a very long time." Castiel admitted. "And I remember many things. I remember being at a shoreline, watching a little grey fish heave itself up on the beach and an older brother saying; "don't step on that fish, Castiel. There are big plans for that fish." The Angel spoke.

Issei blinked and listened to the man speak. "I remember the Tower of Babel...All 37 feet of it, which I suppose was impressive at the time." Castiel commented. "And when it fell, they howled 'divine wrath'. But come on - dried dung can only be stacked so high." He stated. "And, of course, I remember the most remarkable event…" Castiel said as he glanced off.

"Remarkable because it never came to pass. It was averted by two boys, an old drunk and a fallen angel." Castiel said with a slight smile. "The grand story. And we ripped up the ending and the rules...And destiny...leaving nothing but freedom and choice. Which is all well and good, except…Well, I made the wrong choice." Castiel said as he looked toward Issei, before he reached forward and put his hand on the teen's forehead. "Let me show you my story…Let me show you everything." The Angel said, before the two were engulfed in a bright light.

After a few seconds Issei stumbled back, with wide eyes, and they were watery. He saw everything, experienced everything. Saving someone named Dean from Hell, and resurrecting him. A Demon named Lilith was breaking Seals and Dean was the first one. That he was forced to subdue a Fallen Angel named Anna, before Demons got ahold of her. How he was forced to have Dean Torture a Demon to figure out who was killing Angels, only to figure out his partner was the one doing it. How he was forced to free Sam from a panic room, and allowed him to hunt Lilith. How Dean subsequently joined Heaven to stop Lilith, only to figure out Angel planned to stop the Apocalypse.

Then He rebelled against Heaven to save Dean and tried to help his brother. He took Dean to a prophet and had the prophet tell them were Sam was located. But he knew that if he interfered with a prophets prophecy, that an Archangel would attack. After he sent Dean to Sam's location, he waited before he was smote by Raphael; the Archangel tied to the Prophet.

He was resurrected by God, and devoted himself to helping Dean and Sam. When he learned Lucifer was free, he tried his best to find God, but couldn't find anything. He tried to help Dean and Sam with a trickster and it turned out to be his older brother Gabriel, after that confrontation never looked at his brother the same. He eventually joined Dean and Sam along with a few others to kill Lucifer with the Colt, and he himself had a confrontation with his older brother. He refused Lucifer out of loyalty to the Winchesters. After that the brothers were killed by some hunters, sending them to Heaven where the Angels up there wanted the Apocalypse to happen. It was there that the brothers learned that God didn't care. It was then that he lost faith in his father after that.

But what upset him the most was when Dean offered himself to Heaven. All he fought for, all he rebelled for, all he sacrificed was getting destroyed right before his eyes. He lost his faith in Dean, but it was ultimately restored after the Winchester killed the Seraph Zachariah.

Issei experience how Castiel even with the miniscule amount of power he had, went against Lucifer. Only to die in an instant. How his sacrifice, allowed Dean to seal the Archangel Lucifer and Michael in Lucifer's Cage, but trapping Sam there as well.

God interfered again and resurrected Castiel, for a second time, but instead of being just an Angel he was made into a Seraph. Castiel returned to Heaven were the other Angels waited for him. He tried to teach them about freedom, but they didn't understand. He quickly found out that Raphael wanted to free Michael and Lucifer and restart the Apocalypse.

Unable to fight Raphael Castiel wanted to turn towards Dean, for help. But the Angel felt he had asked too much for the man. He was confronted by a Demon named Crowley, and offered a Deal. A deal to find Purgatory and get the souls that resided in the dimension, to power himself; to stop Raphael. But doing that he became the monster he was trying to stop.

After absorbing the Souls from Purgatory, he killed Raphael with a snap of his fingers. He then demanded Dean and Sam to bow down to him, because he was taking the place of God. The souls began to be too much from him, but he still kept trying to pull through. Eventually Dean summoned and bound Death to kill him, but he freed the Horseman. Eventually the souls began to destroy him, so he gave up the power be returning the Souls to Purgatory, by jumping into the Void himself to make sure nothing got out.

Issei looked at the Angel with wide watery eyes. 'I'm…I am nothing. These people, Dean, Sam, Bobby, they risked their lives over and over again to save the world…and all I want is a Harem…I truly am pathetic.' The teen thought, as he glanced down, before he looked at Castiel. 'This being, person, hero…he went up against Lucifer and Raphael…armies of his own brothers and sisters…sacrificed himself for Dean and Sam countless times.' Issei thought.

"Now you know my story." Castiel informed.

Issei clenched his fist, before he took a step forward and wrapped his arms around the Angel, giving Castiel a manly hug. Castiel looked unsure, before he slowly hugged the teen back.

"You are a good person, Castiel." Issei informed, as he pulled back from the hug.

"No, I'm not…I betrayed my friends my family…killed hundreds of my brothers and sisters." The Seraph replied sadly.

"Shut the hell up, Castiel. You are a good person. Even if you did go about it the wrong way, your heart was in the right place." Issei argued.

"…It still does not make what I did right." Castiel admitted.

"So? You did your best. And even if Dean or Sam saw you as a monster, you are still the hero." Issei informed stubbornly, surprising the Angel.

"Now isn't this, such a touching seen?" A dark watery voice asked.

Issei turned around and saw well Castiel, except he had a black vein-like pattern covering half his face, with black watery blood coming out of most of his body.

Castiel moved in front of Issei, and pushed him back. "Leviathan." Castiel stated with a glare, as a silver blade fell out his sleeve.

"Don't get your feathers in a bunch, Cas." Leviathan-Castiel said tauntingly.

"I got rid of you in Purgatory." Castiel said with narrowed eyes.

"Did you? You many have gotten rid of my weak family. But, I dug my claws extra deep into your meat suit." The Leviathan said with a wide smile, before its gaze drifted towards Issei. "So you're the feather brain's new vessel, huh? I have to admit. Casey does have an eye for potential. Who would have thought you had a Dragon in your soul." Leviathan-Castiel said.

"What's he talking about?" Issei asked, as he looked at Castiel.

"It's true, you have a…Dragon…sealed inside your soul. I have no idea how it got there, or how to remove it, I apologize." The Seraph replied.

"Dude, it's alright." Issei stated.

"Touching." The Leviathan said uncaringly.

"What do you want, Leviathan?" Castiel demanded.

"What any monster wants, the total extinction of the Human Race. But, I want go about that by eating them." The Leviathan replied with a shrug, causing the Seraph to stand in front of Issei. "Now there's no need to do that, Cas." The monster said with a smile.

"Get out." The Seraph ordered.

"Tsk, Tsk, Casey. But we both know we can't leave." The Leviathan replied condescendingly. "We both know, once I possess a human. I can't leave…mostly if I do possess a human I take them over completely…And we both know you can't leave." The first beast informed.

"What does he mean?" Issei questioned.

"Whatever got me out of Purgatory…" Castiel began.

"We know who it was, don't lie." The Leviathan voiced.

"…When God got me out of Purgatory, he must have let this…Leviathan, stay with me, even when I shed my broken Vessel to survive." Castiel said.

"That's right, Casey. We're bunkmates in this little boys noggin." The Leviathan said with a smirk. "And If I'm here, you won't leave…And since I can't leave, neither can you." It added, getting a glare from the Seraph.

'If I try to leave Issei, this thing will take him over. And then I'd have un-killable beast to fight, along with trying to leave this world.' Castiel thought. He was able to contain and hold back a forty million Monster Souls along with a few thousand Leviathan Souls. He was able to hold back one Leviathan. "Then it would seem we're at a stalemate." Castiel stated.

"Not really." The Leviathan replied, as it took a step forward. "You see, I'm not going to be here…long…I'm going to do something, unexpected." It stated. "I am going to create…a Hybrid." The beast informed, as it looked at Issei, before it took a step forward, but was stopped by Castiel. "Ah, ah, ah…Leviathan beats Angel, it doesn't matter which kind." Leviathan-Castiel informed, before it threw Castiel back.

Before Issei could react, the Leviathan drove its fist into the teen's stomach. Issei gargled as black ooze came out of his mouth and nose.

"Do you know what my ambition was? No. It was to drug the human race. Turn the entire planet to a large cattle ranch…That's all humans are good for." The Leviathan said, as it began to leak more black blood. "But oh no, God in his infinite fucking wisdom fucked it up! Now I'm in a world I can't understand! I'm alone in this pathetic World, with none of my Kin!" The First beast yelled. "Now I'm trapped in the one being I resent the most! Hm, but I'm going to do something…that will defiantly piss God off. I'm going to ruin his 'Precious Creations'…Hmhmhehe…Isn't that right Issei? Or should I call you, Son?" The Leviathan asked rhetorically, before it laughed and melted into black goo.

Issei lurched forward, before he collapsed to his hands and knees. He coughed violently causing black liquid to come out of his mouth. Issei looked at his hands and noticed black vein-like markings became apparent, before they receded into his skin.

The Teen looked up and saw Castiel standing above him. The Seraph reached forward and touched Issei on the forehead, and all the pain he felt vanished.

"It seems it was right, it did make a hybrid." Castiel stated, as he narrowed his eyes at the teen.

"W-what do you mean?" Issei asked freaked out.

"The Leviathan merged with you, creating a Human-Leviathan Species." Castiel informed, as his eyes glanced at the black ooze on the ground.

"Huh…" Issei sounded, as he made a face. "Mm…Ha…Ha…I don't really feel any different." He admitted as he looked at the Angel.

But Castiel was still staring at the black ooze. "Castiel!" Issei announced.

"What?!" the Angel snapped.

"No need to piss yourself. I was saying I don't feel any different." Issei informed.

"Hmm, your soul and body might have to adjust to this merger…" Castiel trailed off.

"So I'm going to lose my individuality because of this?! I might become a demon!?" Issei asked hysterically.

"Calm down." Castiel said, shutting the teen up. "I said 'merge' not 'posses'…You and the Leviathan will become one." The Seraphim informed, before he looked down in regret. "It would seem I jinxed you too." Castiel commented.

"Enough with this self-pity." Issei snapped, surprising the Angel. "So you had some bad luck. So fucking what? Everyone makes mistakes, everyone has bad days, everyone has made bad calls! That's what it means to be human! Isn't that what you want? To know what it's like to have free will? Free will means to learn from your mistakes, so you can make sure no one else will make the same mistakes!" Issei yelled. "To grow, to change, to become something better than what you were. That's what it means to have free will. To choose what you want to be, to be what you want to be, to think how you want to think, to repent how think is right." Issei ranted.

Castiel knitted his eyebrows together, before he looked away. "…I see. You've given me something to think about, Issei. Sleep." He said, as he touched the teen's temple and in an instant Issei collapsed. Outside his mind Issei fell back and fell asleep on his bed.

When the teen was unconscious, Castiel looked around, before he waved his hand over the black ooze causing it to vanish. Castiel narrowed his eyes, before he snapped his fingers. The entire park shifted to another visage, consisting of a dark void. All that was seen was a large sleeping red dragon and eight pawn pieces.

Castiel tilted his head slightly and looked at the Pawn pieces, and noticed only one was glowing. The Seraph walked closer to the piece, before he reached out and touched it. But he was stopped by a large red circle with a sigil making up most of it.

"The Mark of Gremory. Hmm, why does he have a claim on Issei's soul?" Castiel muttered, before he glanced off. "There have been no deals made." He commented. "But I can't remove a claim. If the Demon Gremory does have a claim on Issei, it would mean. Issei willingly accepted something, and the only who can remove it is the Demon himself." Castiel said with a sigh, as he turned and looked at the sleeping dragon.

"I don't know what you are. You're not a type of dragon I've ever seen before…This world is just getting weirder and weirder." Castiel muttered, before he snapped his fingers, causing the area to change back to the park. Castiel sat back down on a bench narrowed his eyes at the ground and began to contemplate what Issei had said to him.

Here's anther Story. While scoping the Inter-Webs i found there were little to No Highscholl Dxd x Supernatural Fanfics and i thought. 'Why not write one.' So here it is the first chapter.

Yes Issei is the Main Characters. 'Why?' because he's the main fucking Protagonist! I hate how people constantly write Naruto or OC fics about Highschool Dxd. And most of the Naruto fics don't make him Naruto at the serious fuck? People write him not as Naruto, he doesn't have the same personality, Backstory, he doesn't look like Cannon Naruto, doesn't have the same powers as Cannon Naruto...Honestly with how much people change Naruto, they might as well just call him Larry or some shit. I mean all that he has is the name 'Naruto', and that's it.

...Excluding that riveting rant, here's the story. Tell me if it was good or bad. Or want to criticize me on how much it sucked. Or how much the character is overpowered. Or how retarded-gay-as it was...just about anything is fine...I don't care.