It was a perfectly normal day for Class 1A at UA High School. They were conducting routine anti-villain training under the supervision of Mr. Aizawa and All Might when something went seriously wrong.

At the same time a villain was fleeing from the police and several heroes, including Endeavor, just a few meters from Class 1A's training area. Somehow, the villain managed to get onto the area, right where Izuku, Katsuki, and Shoto were training.

It all happened very quickly: Of course, they fought him – and since they didn't know what Quirk the villain possessed, they were also very cautious.

Then the heroes arrived, the three were distracted, and the villain took advantage of the opportunity and used his Quirk. Izuku and Katsuki were able to take cover just in time, but Shoto was grazed – by a Quirk whose effect no one yet knew.

"Shoto!" Izuku screamed when he saw the beam that would inevitably graze Shoto.

"Shoto!" Katsuki screamed as Shoto was hit.

Shoto fell to his knees, hand pressed to his side—of course, it hurt from the hard blow—but all in all, so far, he'd been fine.

"Sho, are you okay? Does anything hurt?" Katsuki asked worriedly. It wasn't something you saw every day, but after all, his boyfriend was being attacked.

"Oh God, Shoto, did he hit you hard?" Izuku was worried, too. They had no idea what kind of Quirk this villain had, or how badly Shoto was really hurt by it.

Endeavor quickly dispatched the villain after seeing that he had hit his son, and the villain was arrested. His Quirk is still unknown.

Class 1A's training ended, and Katsuki took Shoto to Recovery Girl, but nothing unusual seemed to have happened after being hit by the quirk, and Shoto didn't feel unwell.

So they were allowed to return to the dorms of Class 1A. However, the changes brought by the Quirk's blow were already starting.

[Villain: "Villainizer" - Quirk: Turning. He can turn people into villains with one blow of his Quirk, or turn people into their opposite. Good people become evil, evil people become good, etc.]

Two week have passed since the encounter with the Villain.

Minor changes have already began in Shoto, still undetected, until they were starting to show slowly.

"It's really unbelievable that the police still couldn't find out what the quirk of this villain was." Izuku talked with some of their classmates in the living room of their dorm.

"I should have blown out his head as soon as I had the chance." Katsuki was still angry that Shoto got hit and he couldn't do anything about it.

And then Shoto walked into the living room.