you were a childhood friend of bakugos, but when you went to see what quirk you would get, he got more than he bargained for dr ???:"well, looks lke he has an O type gene... that's very rare..... along with a quirk is almost unheard of..." bakugo:"O-type? the hell does that mean!?" ???:"well... it means, you have a certain.... thing.... basically, you can go through the human equivalent of heat" mitsuki:"what do you mean 'human equivalent of heat'!?" ???:"i mean, once he turns 16 he'll feel a unexplicable attraction towards someone he has a deep bond with" then, the doctor turned to you ???:"and you, have the A-type gene... meaning that O-types are more likely to go after you during heat, and that you can get O genes pregnant, regardless of their gender, and you can detect when an O-type is going into heat" you, bakugo, and mitsuki:"WHAT!?" after years of awkward interactions, you and bakugo got into U.A, but... bakugo was about to turn 16...