It's only until you fight the real thing do you see how serious the danger is you and your friends can get in.

" C'mon kid, put on your hero clothes, we're going out to fight some villains!"

Izuku, on the floor, looked at Gran Torino with slight shock.

" Villains? But we are only two days into this thing!"

" If you keep fighting the same me, you'll never get experience fighting different villains with different quirks and fighting styles."

Izuku knew if he only fought one person, his new techniques and fighting style will not evolve along with his power. He put on his clothes as he, All Might's future successor, and All Might's teacher head into the streets. Little did they know they will meet a villain that will impact the future of both heroes and villains.

Time Later

" I know those eyes. Eyes filled with revenge. Being taken in by the hatred before you and trying to fulfill your own desires, is the furthest from what a hero should be."

Tenya was currently paralyzed on the floor, his eyes tearing up as he was about to die. He came to fight Stain himself to avenge his older brother, Ingenium. But knowing that he wasn't successful in doing so without anyone to come to his help. As Stain was about to kill him, footsteps coming at a fast rate echoed through the alley. All that Stain saw was a blur of light green with dark green that punched him in the face. Stain went flying back but still managed to land on his feet.

Tenya looked up to see who it was, only to see his friend Izuku standing in front of him. But what was different is that he wasn't even hurt from using his power. His body wasn't filled with purple cracks, but had sparks of green lighting flowing through his body while it glowed.

" Izuku! What are you doing here?"

" I'm here to save you! We gotta go right now!"

" Izuku I can't move my body!

" What a true hero your friend is. He came all this way to save you. I'll spare your life boy, but do not get in my way. "

" I will not let you hurt him!"

Minutes later

Right when it seemed things were gonna be over for both Izuku and Tenya, a blast of fire came hurdling towards Stain, only for it to be Todoroki. What was more shocking to Izuku was him using his left side, a power he swore he wouldn't use until he used it at the Sports Festival against Izuku.

Stain managed to dodged Todoroki's fire. The fight has now moved in the favor of the young heroes who are now determine to not only live, but put a stop to the hero killer. Unknowingly to them, a person would be on the rooftop to record the whole fight.

Climax

Gran Torino and other heroes would come to assist the young heroes, only to see Stain tied up and his weapons rid of. Not imagining to see the hero killer himself knocked out and beaten down by three youngsters, they were in quite a shock. Gran Torino wasn't all happy to see Izuku there as he told him to stay on the train, but was still happy to see him okay. Out of nowhere, a winged Nomu came and swept up Izuku, carrying him away while it was bleeding. The Nomu's blood got on the face of one of the heroes.

" That Nomu must've came from a fight! It's bleeding!"

Stain took a blade from his sleeve and licked the Nomu's blood off of the hero's cheek. The Nomu felt a paralyzing sensation take over it's body as it crashed down.

" This society overgrown with fake heroes...and the criminals

who wave their power around idly...

Stain gripped the back of Izuku's costume killed it. Not one person took a step forward as the hero killer could make a sudden movement.

...should all be purged. This is all to create a more just society."

Endeavor came from around the corner to see the hero killer. Stain turned his gaze towards the flaming hero with a grimly gaze. Endeavor immediately stopped in his tracks. Izuku looked up to see that the bandage that was wrapped around his was taken off, to reveal no nose their and revealing more of his bloodthirsty eyes. Stain pained no attention to Izuku as he walked towards the rest of the heroes.

" You fake

Come! Try and get me, you fakes! The only one I'll let kill me is the true hero ALL MIGHT!"

The sound of Stain's blade fell on the pavement snapped everyone out of a terrifying trance. He froze in place as his body stood still.

" He stopped moving..."

It was later heard that a part of his rib cage stabbed into his lung, ultimately making him stop in his tracks. At that moment, Stain would've fought all those heroes by himself.

Epilogue

Shortly after capture of Stain, the streets were cleanednup and the Nomus were taken away. On top of a water tower, Shigaraki and Kurogiri stood and watched as their plan has been foiled by heros and villain. It made Shigaraki furious as he now doesn't have any backup support no more. He lost all his men at the first encounter with UA. He lost his three Nomus. Now he didn't had any backup plan, except to talk to the man behind the screen. The three young students, Izuku, Tenya, and Shoto were taken to a hospital to investigate any critical injury.

Meanwhile, a man with burn scars wearing a torn coat walks around the street. A giant spiked figure walks across the forest. A blonde girl with school uniform hops through an empty building.

The villain world was gonna change