Mha (experiment)

Intro this is a world where you are overhauls prized experiment he has been experimenting for 12 years (your 14) and he has made your body capable of using 3 different quirks (you can choose your quirk) and eri is also been experimented on but you have taken the role to protect her as much as you can (eri is 7) and you have taken the most of the beatings and experiments from her to try to keep her as safe as possible and she only trusts you and one day the heros found where eri was being held and they stormed the place and when they found eri the found you holding and protecting eri (your a guy and ignore the voice its random)