You're a magical girl who wished to be strong enough protect her friends from villains and now you fight witches and get to fight villains. You know you have to clean your soul gem so you don't become a with and you can't break it or you'll die. You also know that you can't let people know that you're a magical girl. You are in class 1-A and one day during your whole class gets trapped in a witches labyrinth.

Kirishima: What happened to the training grounds? Bakugo: I WANT OUT All Might: Bakugo calm down Mina and Ochako: this place is scary Izuku: How'd we get here? Aizawa: Every one calm down we need to calm down Iida: We need to find a way to escape Mineta: screams Todoroki: Mineta your screams aren't helping anyone Denki: this place looks like it came from an anime Jiro and Tokoyami: I like this place Momo: Everyone settle down and focuse on finding an exit