accidental

Shouta Aizawa just expelled an entire class of students that had no potential, and was on his way home for a well earned break when he gets bumped into on the street and ends up as a cat. It takes a few days, but eventually he finds himself in the home of Izuku Midoriya, who just wants to help the cat that looked half starved. He did not sign up for a weirdly intelligent cat that has a quirk that can erase other quirks. Shouta determines that the kid has potential, and he's not going to let it go to waste. Even if All Might was also trying to make the boy into his successor.

“You— You’re acting odd, Dream, why are you acting odd? Has the prison gotten to you already? Has it made you all wonky in the head?” Dream huffed, “My head’s fine, Tommy, thanks. And I don’t know what you mean by that.” “You’re being weird.” “How weird?” “I don’t know, just… weird.” He looked Dream up and down. “You stand different and you laugh different, it’s freaky.” Whoever this Dream was that everyone here knew, he had more relationships than Dream ever had in his entire life combined. Whether that was a good or a bad thing remained to be seen. Or, an on-the-run Dream finds himself in the body of his alternate self. Then proceeds to get locked up. Great, his alternate self just had to be a bastard. (Meanwhile, said alternate self decides the best course of action is recruiting a familiar ally to help him get back. No way that could backfire.) (or, or, the fic where manhunt!Dream and dsmp!Dream swap places and no one is happy about it.)

from that one vine where the guy pranked his roommate by shouting wake up to startle him but ended up seeing his roommate in bed with a guy.