Bakugo had blown up the dorms. They had gone up in flames, and burnt down. Saftey hazard. So now while they’re doing construction, Aizawa called in all the pro heros (Midnight, Mirko, Best Jeanist, Present Mic, All Might, Endeavor, Hawks, Mt. Lady, Edgeshot, himself, Fat Gum, ect.) to each pick atleast one student to take home until the construction is finished. You are a student waiting to see which pro hero will claim you as their temporary roomate.