You don't know what the fuck happened. One minute Shigaraki was standing in front of you, and then the next a small black haired kid. You assumed it was the effect of a quirk, but holy shit. The kid was ansty and afraid to get close to you. You've found out you have the shittiest luck. Not only did Shigaraki regress physically, no no, but he regressed mentally too. Meaning he had no idea who the hell you were. Amazing.