As the students entered the facility, they found themselves on an elevated platform with a large set of stairs going down. They noticed some type of settings in the distance. One seemed to be a fake city while another one was entirely filled with water along with a giant boat. Then they were greeted by the pro-hero 13, who explained the purpose of the facility along with why it was made. In the middle of 13's lecture, a cloud of black mist appeared down below. Out of the cloud came what seemed to be an army of villains.

"Nice! You guys even have fake villains to fight!" Said Kirishima as he cracked his knuckles.

"Those are real villains" Aizawa warned, alarming everyone. "13, protect the children." He said before he jumped into action.

"Alright kids, get behi-" he was cut off to see a flash of green and white fly past him.

"Midoriya!? Come back! It's not safe!" One of the students yelled.

"Oh look! Kid thinks he's tough! Let's show him what we're made of." One of the villains said as he charged at Izuku.

*PUNCH*

"AAAH!" The villain screamed as he met his end. The rest of the villains were shocked to see that a student killed one of their own with a single punch. Soon, more and more villains charged at the boy in an attempt to take him out, but they too met the same fate.

*in the distance*
The dark cloud of mist and a grey man who was covered with hands was watching everything.

"Shall I take out the students Shigaraki?" The cloud asked.

"No, take him out first" Shigaraki said as he pointed at Izuku. "He's the biggest threat right now. Release Noumu."

"Yes sir." The mist said before he expanded himself. Then a huge, muscular bird monster walked out of the cloud.

"Noumu, kill that child" Shigaraki said as he pointed at Izuku. The monster let out a loud shriek as he charged at Izuku. The monster cocked its fist and took a swing at Izuku's face, launching the boy right back to his classmates. Noumu then jumped to the class. Izuku then kipped himself up and punched the Noumu's torso. He was a hit surprised to see that the punch only sent the Noumu back a few inches. The monster took the opportunity and grabbed Izuku's head, then he slammed him to the ground. 13 tried sucking the monster into his/her blackhole, but the monster would just stand there and regenerate the parts that have gotten sucked in. The monster then took its attention to 13 and swatted him away. Then it turned back to Izuku.

*PUNCH* *PUNCH* *PUNCH*

The monster got sent down the stairs. It soon got up and prepared to charge again, but was met with Izuku's fist as it got sent down even further. 'Finally, a real fight' Izuku thought to himself.

"Consecutive blows" Izuku said as he launched volley of punches to the monster's upper half, making it explode into blood. But a new upper body sprang out from its lower half. 'Regeneration...this might take a while.'

Then the two clashed. Each of their fists connected with every one nah they through. Then both of them punched faster and faster. Then Izuku got lucky and landed a direct hit to Noumu's chest, knocking it back a few meters. Then he took the opportunity and landed numerous amounts of punches on the monster. Each punch Izuku threw was stronger than the last one. Then he sent another punch which sent the Noumu flying. Then the Noumu quickly got up and landed a volley of its own.

'Its attacks are getting stronger' Izuku thought to himself as he took the punches of the monster. Then Izuku was sent flying back. As he got up, he could sense that the Noumu was gonna go all out.

"If you're going all out, I guess I should too." Then the squatted his legs and jumped forward at the Noumu, who was cocking his fist for a big punch. Izuku then cocked his fist. "Serious Punch" he said as he swung his fist. Their fist connected, but Izuku had the stronger punch. The Noumu's fist was obliterated, followed by its arm, then it's shoulder, then it's entire torso. Soon there was nothing left of it. It was dead. The force of Izuku's punch blasted everything else away. The punch not only killed the Noumu, it knocked out villains near by and broke all the glass in the building.

Meanwhile, Shigaraki was furious. "He killed the Noumu..." He growled as he scratched his neck furiously. "Kurogiri! Let's get out of here!" Then he was surrounded by black mist. Then he disappeared along with the cloud. Soon, the heroes arrived and took care of all the remaining villains. The class was rushed back to school where they waited in the classroom for further instructions.

"Yo Izuku, how are you not like...severely injured from that fight with the monster?" Asked Denki Kaminari. This question got the other students' attention as well.

Izuku simply answered with "a glass of milk a day goes a long way" while he was rolling his shoulders and cracking his neck. But in his mind.... 'That fight took a toll on me! I can barely turn my head or lift my arms!'

Soon the principal arrived in their classroom.

"Hello children, I am the principal. Due to the recent events of today, class will be canceled for the rest of the week. Now I suggest you guys pack your stuff and go home. That is all, thank you for your time."

"Welp, I'm going home to exercise." Izuku said as he fixed his stuff. The rest of the class was just staring at him at his statement.

'He just fought a giant monster an hour ago. How is he not traumatized at all!?' The class thought. As Izuku was about to walk out along with Uraraka, some of the class followed behind to spy on him. They followed them to the station and got on the same train with them. Then they followed Izuku as he got off and walked home. They followed him to his apartment and watched from behind as he entered. Luckily, he left the key under his doormat, so they could sneak in pretty easily. They all went in and hid in his living room. They watched as he entered his room. The peeked through his bedroom door when was only opened by a crack. They saw him undress to his boxers, revealing his well developed muscles. Some of the girl aso most fainted at the sight while the others took pictures. Then Izuku put a shirt on and dropped to the floor to do his simple exercise routine. They all watched as he completed 100 push-ups, sit-ups, and squats along with his run.

"That's it? That's the secret to his strength?" Some of them asked.

As the class was about to move and exit the apartment, they were alarmed.

"Is anyone there?" Izuku asked from his room.

The class tried to move faster without making a noise, but then.

*CRASH*

Izuku broke through his bedroom door. "WHOS THERE!?" He yelled. Then he saw the class who were trying to run away.

"Fucking book it!!!" Denki yelled as he tried to run. But as the class reached the door, Izuku appeared in front of them, startling them back.

"It's rude to enter someone's house without asking..." Izuku said as he lifted his head to show his eyes which were practically screamed "I'm gonna kill you". He then dashed behind the group as he cocked his fist. As he reappeared behind them, they turned around to see him swing his fist. "PAY FOR MY DOORWAY!" He shouted as he swung, sending a huge gust of wind to blast all of them through his doorway and out of the apartment complex.

"WAAAAAAAAAHHHHHH!!!!!!!!!!!" The class yelled as they were sent flying through the tiny doorway, over the ledge and out into a nearby field. As they were getting up, Izuku jumped from the building and into the field, breaking the floor on impact. He then looked at his classmates with the intent to kill once more.

"HOLY SHIT!!!" They shouted in unison as they ran away as fast as they could. But they stopped as Izuku reappeared I front of them.

"BEGONE!" Izuku yelled as he punched the air, sending his class flying with a huge gust of wind. Then he walked back to his apartment.