A hero of justice [My hero academia x Shirou Emiya]

The Hero Killer

It was a dark, stormy night. The rain fell like thunder and was unrelenting in its assault on Shirous body. He'd just escaped his previous house and now needed to get far away before a search party is sent out.
Looking down an alleyway he sees two men stood suspiciously passing objects to each other. It was obvious straight away that this was a drug deal.

"Have you got the stuff?" One of them asks as Shirou listens in, the rain covering his tracks. "Yep finest on the market trigger." The other says opening a briefcase where multiple syringes are held. "Good work. The Hassaikai family will be pleased." The buyer takes one out and begins to inspect it. But then he heard it. The splashing as Shirou walked down the alley. His clothes were soaked and his red hair lacked any sort of glimmer. His golden eyes glared down at the two drug dealers.

Trace On!

Two European style swords form in his hands. The rain pouring of their edges gave them an intimidating aura. "Who the fuck are you!" the seller shouts backing up in fear. Shirou doesn't stop however, rather he speeds up. Now running towards them quickly closing in the distance, with every step he makes the thugs shake in fear. The seller quickly grabs a Trigger injection and released it into the veins. His tongue went black and his eyes became blurry.

Smokescreen!

A quick that would normally allow him to release small amounts of smoke off his body. But under the effects of greater trigger, he can become smoke! Turning into an elemental configuration of smoke and two red eyes he floats and shoots great amounts of smoke towards Shirou who is pushed back down the street. The buyer picked up the rest of the case and ran. Shirou attempted to run past the Smokey elemental only to be hit into the ground with a gigantic smoke pillar.

"Haha! Did you want to stop me with this little power? Are you joking!" The seller laughed, his smoke beginning to break Shirous bones under the pressure of the heavy smoke. Looking up he saw a figure he recognized. How could he ever forget the man who betrayed him. The mans name was Chizome Akaguro.

The Hero Killer

As the hero killer fell from the sky he sliced straight through the Smokey threat. Revealing that there was a core within his body. And forcing him to let go of Shirou. "Hello, little red." Stain says to Shirou who was activating his quirk once again ready to deal with the Smokey menace who'd just reformed. "Stain..."

Flashback

5 years ago stain had just been seriously injured by knuckle duster. He was on death's door. But he refused to accept this fate. He would create a better society. His dream could not die here! He walks down the street looking for some way to survive. But he finds nothing...

He falls unconscious and that's where his tale should end... but by pure fate, a young Shirou was doing his daily rounds at the time. Seeing a body on the floor Shirou dragged him into a nearby shop. The shopkeeper was willing to help the boy who helped them. Grabbing bandages he prepared to wrap them around his wounds. But not before using Alteration on stains body to close the wounds. It took a few minutes but Stain woke up. He'd lived, no licensed hero saved him.

Rather it was the help of a young boy who kept his dream alive. "Don't worry, I've fixed your wound. You will live." Shirou said to Stain who was already trying to get back up. "Thank you, you are a true hero. Far greater than any of those god damm fakes." Stain said praising the young child for his want to help others. "Fakes? You believe some heroes are fake?" Shirou said questioning Stains ideals. "Yes! Those who are heroes for money, fame or power. None of them deserves the name of hero!" Stain said fully heart strong in his ideals. "What are you going to do about it?" Shirou was a man of action. He wouldn't just preach ideals, rather he would go out and start completing them.