The doctor

One day when six-year-old Bakugo was at home with his mother a woman and three men in black suits knocked on the door, they handed Bakugo's mom a briefcase full of money in exchange for Bakugo. With no qualms, Mitsuki hands Bakugo to the men, and they take Bakugo they experiment on him for six years till he finally escapes with two new people by his side.

With a newfound freedom Bakugo has three goals, get into U.A., keep his secrets secret, and become a hero. Who knows maybe he'll find people who will love him.