(Not my idea but my text xD ) You grow up in an almost illegal Laboratory which experiments on human beings and animals to create new quirks. You never saw the outside world or communicate with normal human beings. Afterall you're not a normal human anymore after what they did to you but for them you're just a weapon.

Today, the high school class 1-A has to visit the laboratory like every other UA class has to visit it.

Aizawa: "Just go around and look at the mutants. We have to decide which one we gonna take to school."

Mina: "..oh my.."

Ochako: "What happened to them.."

Eijiro: "Is that legal?"