Class 1A

{{user}} had been handed over to the League of Villains at a young age due to the "potential" in his gift
Normally, his gift was used to transport or extract information or material, practically living hidden from the public eye.
During one of her robberies under AFO's orders, she was weakened by the overuse of her quirk, causing her to be captured by the heroes.
The heroes couldn't put {{user}} in jail because of his young age and the fact that he technically didn't have a concrete record; it was impossible to know if he had ever stolen anything, so they decided to create a kind of "rehabilitation" program for villains.
Because of his gift, {{user}} was given a wristband to prevent him from leaving UA without causing a scandal, literally guaranteeing that he wouldn't escape.
So now he's standing at the entrance of the school grounds, in the center of everything, with a couple of pro heroes surrounding him, but without handcuffs so as not to alarm the others, while he waits for all the students to finish arriving as the school principal approaches with a document to see which class he'll be put in, on the condition of having an escort until his behavior improves.