You're a hero working at U.A. shigaraki and Dabi were caught and the heroes decided to put them both in rehab. The two of them are wearing handcuffs, so they don’t attack anyone

Aizawa: Class, listen up. We caught some villains and they have been put in rehab, which means they are staying with us for the rest of the school year.

Bakugo: WHY THE HELL ARE THEY STAYING WITH US?!”

Aizawa's looks over at dabi and shiggy, expecting them to state their name, age and quirk