This is my first fan fiction so forgive me if there are mistakes and such. I'm pretty bad at English and writing, but I wanted write this story that's been in my head for a while. My OC has an esper power from a light novel called "To Aru Majutsu no Index." So I ain't sure if this should be in crossover, but I'm just going put it here. Please go easy on me. Hope you like it.

Disclaimer: I do not own anything, except the OC (not his power though).

Chapter 1: Rain and Wish. Flames and Ashes. Return of a Hamada.

The funeral was raining that day. Hiro was walking alone around a grassy plain in the city despite bringing no umbrella to protect himself from the rain. He wanted to be alone. Tadashi, his older brother, had died while trying to rescue his professor in the burning school building. Both were dead as the report said. They found no body, however there were evidence that suggested the bodies were burned at an intense temperature or destroyed by the explosion. It was too much for him at Aunt Cass's house, it reminded too much about his brother. Tadashi's friends tried to help him, but he rejected their comfort and chose solitude instead.

If only I had stopped him, I shouldn't have let go! Why, why, why!?

Hiro shouted at himself in his thoughts. It was his biggest regret in the world now.

He bit his lip in frustration trying to keep his sadness from pouring out, but it miserably failed as he wailed in tears.

"Tadashi….why...you idiot...guh! Why did you go into the fire!? Dammit!"

He cried at the dark clouds in the sky letting out his frustration to the one person that he loves the most in this world who was now gone. He knew well his message would never carry forward to him. Still inside, he had hoped he would find a sign that Tadashi heard it.

All he can hear is the sound of rain pitter patter throughout the city and a wind mildly howling. There was no sign. Hiro sighed in disappointment, his expression turned into despondent as he told himself for being stupid for wishing a sign for that.

His eyes grew hopeless and despair. There was no point. He's gone. He's dead. Died in those flames. Gone.

He walked further along the grassy plain, the rain made the ground muddy and sticky, making each step for Hiro difficult to move. He kept muttering about Tadashi being stupid idiot he is and how he was the worst brother of all. Of course it wasn't true at all, not with his face crying in pain with snot and tears kept dripping from his face. He was simply trying to cope the endless
gap of pain in his heart.

Hiro didn't know how long he walked in the rain, his mind was clouded with thoughts of his kind older brother. He then stumbles upon something on the grassy plain road he was taking.

It was an abandoned shrine on the side of the grassy road. It was a really small shrine the size of a child's toy house for their dolls, and with a fox spirit statue with a silver bell and orange cloth around its neck. It was really old and worn out small shrine.

"A shrine…?"

Shrines weren't uncommon in this city, but this shrine seems particularly strange as it was in the middle of nowhere for anyone to make any offerings to. Thier purpose was to be worshipped commonly in a convenient area in a city like this or along a traveler's path. Where Hiro was walking was an area that was usually left deserted, it would be the place he usually walks when he wanted to be alone.

He kneels down and examined the shrine closely. He noticed something by his feet.

There was a worn out ema on the muddy ground. It appeared it's string that was attached to it was torn and small hints of black ink over it being washed away by the rain. He noticed there was also a sign with with empty emas next to it.

The sign says, "Make a wish."

Hiro made a dry laugh as he knew very well what he wished for. But looked down with sorrow as he knew very that it will never come true as well. Despite it, he slowly took the brush and ink bottle that was next to the shrine, where it's being covered by the roof so it wasn't wet. He picked up the fallen worn out ema on the ground and dipped the brush into the ink.

It was a strange shrine. It didn't seem to follow the typical Japanese traditional shrines criteria. One, it was too small compare the large ones, the appearance seemed really old and broken, and another was that fox statue was next to it. Normally there would be one around shrines like these, but the difference was the color of handkerchief that was normally red is an orange one instead. Actually it didn't have any emas hanging onto it, the one on the ground was probably the only one that was hung up there. There were no words on it so Hiro thought it was okay, though it was worn out with scratch marks behind it. Hiro could have got the new ones by the sign, but Hiro was too depressed to simply change the ema that was in his hand. Hiro didn't care, he just started writing.

He slowly and shakily wrote in the ema his only wish in the world, "I wish Tadashi nii-chan would come back alive."

He looked at it with gloomy eyes before tying it up in front of the shrine. He stared with hopelessness at the wish that would never be fulfilled. He made his prayer that will never come to reality.

Hiro then stood up, realizing he had been out too long and he was starting to feel slightly sick from the endless falling cold rain. His nice suit had been already wet enough that it felt like a second skin that was uncomfortable. He looked up at the dark rainy sky one last time, taking
in each drop of cold rain upon his face that was washing away his warm sorrow tears and snot off his face.

The rain and wind started to get stronger, it was time to go home. He walked away from the shrine to return home.

The strange shrine was left alone in the chilly rain and the howling winds.

Then something odd happened.

The ema hanging in the shrine started to dangle a little and then the black ink illuminating a bright white light. A jingle sound was made from the fox statue's silver bell.

Months later

Hiro woke up as usual like he always did. The sunlight hitting his eyes and the birds chirping indicating the start of a new day. Though Hiro wished it all disappeared. He didn't want get up today, he just wants to wrap around in his blanket in a cocoon and stay there. It's been around a month after Callaghan was put in bars and the beginning of their super hero team. Hiro started going to his college classes and hanging out in Tadashi's lab with the gang. He got use to the life style that his brother always wanted, except for the part becoming self-proclaimed superheroes and defending the city of San Fransokyo. They only started, but they made their labs like a home-base, this way they can improve their weaponry and armor while doing their homework.

"Hiro! Your breakfast is gonna get cold!" His Aunt Cass yelled from downstairs.

He looked at the time. It was already 10:30 am.

"Coming Aunt Cass!" he lazily yelled back, he scratched his mop, black hair as he yawned to get himself fully awake.

He didn't have any classes for a while because there was sort of an accident that happened within the school. Something went wrong in a student's experiment and caused quite a bit of damage, therefore classes were cancelled for a short time. Hiro laughed a little, he thought for sure Fred did something. knowing the guy was using fire with his monster armor.

He would always look at Tadashi's bed every morning to reminiscence about his older brother, he didn't want to forget him despite the pain in his heart.

However something was different.

He looked over at Tadashi's empty bed like every morning expecting to see the untouched, empty clean bed, except this time it wasn't empty at all.

Someone was in Tadashi's bed.

Hiro's mind went full alarm mode. He immediately went to grab a broom that was on the side of the wall. He thought it might have been Aunt Cass in his older brother's bed, but he just heard his Aunt waking him up just now so it couldn't be her. he couldn't see who it was under those sheets, but he figured it was a man due to the size. He cautiously stepped forward. He was scared of who the intruder could be or what was this person even doing here. Then slowly, Hiro was actually kind of angry more than scare. Whoever this bastard was sleeping in his dead brother's bed, Hiro won't be merciful at all. He slowly tiptoed his way closer to the intruder with his broom that he was holding very close to him. He slowly raised it up and then…..

Smack! Smack! Smack! Smack! Smack! Smack! Smack! Smack! Smack! Smack! Smack!

He smacked the intruder's body rapidly with all his strength. He heard the intruder yelp in pain for each hit he made.

"Ow! S-stop!"

"Who the hell are you?! Get off of my brother's bed you-!"

"Ow! Ow-! C-cut it out, little bro!"

Wait, why does his voice-?

He stopped his hands in mid-air as he processed to recognize the voice he just heard and the words the "intruder" said just now.

The "intruder" immediately took the blanket covers off, revealing himself to Hiro.

His entire mind went into shock. He dropped the broom.

N-no..it can't be...

Hiro's thoughts instantly became blank the moment he saw who it was under the bed. His eyes widened and frozen from the person he is seeing right before his eyes.

"T-ta-…." His voice became rasped, he couldn't even dare to say who's name it was on the bed. Because it should be someone that shouldn't be there. His hands were shaky now.

This...isn't real right? This can't be happening. This is impossible!

"Oww…..Hiro! Why are you smacking me with a broom!?"

Hiro's face became really paled. His vision started to become blurry from his eyes were being filled with tears that was threatening to stream down on his face. His legs started shaking and felt like it wouldn't support him any longer.

Was he going crazy? If it was, his mind was really putting a very cruel joke on him.

He barely had the strength to ask the person in front of him. His voice was very shaky and was very soft.

"T-tadashi...i-is it really you?"

"Yeah I sent him back to his family, though I didn't have enough time to cover the story entirely. I just finished the last touch up; I'm just taking a break in this shop near the hospital. They will try find out what happen to Tadashi Hamada in the past months and why he is alive in one piece with no memories after the fire incident. Though I wonder if it will be enough..."

A boy who look around 18 years old was talking to his smart phone in a juice shop, drinking a blueberry drink. He had a somewhat messy grayish-black hair that his bangs would cover his orange eyes sometimes, he wore a black hoodie with square line orange patterns on both arms sleeves and a unique symbol on the front, a white shirt with a two different shades of blue line diagonally across the shirt, wearing grey loose jeans, and have a strange silver-white custom bracelet attach to his right wrist. He carried a black messenger bag with an orange-colored skull design on it.

"Sigh... I can't believe I went through this much trouble. Why did I accept those promises..." the boy muttered tiredly as those last words were directly to himself instead of the person on the other line. The boy drank his blueberry juice for a while with a tired expression with eyes that displayed unreadable emotions before he started talking again.

"Anyway I believe this should be the end of this annoying coverup of hopefully something meaningless. I'm just gonna hang out this in unique city for a while. I'll talk to you later, bye." The boy hung up the phone and started to drink his drink again. He was clearly enjoying the tranquility of the shop. It wasn't too noisy or too quiet, it's background sound were murmurs of customers' conversations creating a calm atmosphere for him to relax. He spun around a large silver white remote control with his right hand like a western gunman with his gun.

"It will be a lot easier to simply leave, but... I can't do that even if it is easier."

His white bracelet started to light up multiple orange square-shaped lights.

Then something white and round covered the corner of his vision.

"Eh...?"

The boy quickly turned to the direction of the white mass to identify what it was. The first thing that came into his mind was a marshmallow. And then after a few seconds later that thought became a white balloon. He blinked a couple times before completely registering what he was seeing. It resembled something like a white inflatable snowman. It made an electronic noise when it tilted it's head.

It was a robot he guessed.

"Hello. I am Baymax, a personal health care companion."

"Ughhh... Hello Baymax." The boy slowly responded as he tried to make sense what was going on.

"You are the intruder who stumbled his toe against the edge of the bed when you were putting Tadashi back to his bed. On a scale from 1 to 10, how would you rate your pain?"

The boy immediately choked on his drink and started coughing from the sudden accusation. His face started turn red most likely from the choking.

"Wh-what!? How the hell do you know that!? And to answer that question it was a 10, goddammit!"

Ame-Okami: I think you exaggerated on that last part.

OC: Shut it.