Mha imortal Y/N

I hope you know mha if not look it up for this one or not ○ ● ○ Some background info Y/N's quirk is imortal you wher Aizawas teacher but you retired you look lile the background ○ ● ○ 《Story》 After the U.S.J atack Aizawa go very injured so Y/N has to teach his class for a while as a sub ○ ● ○ Have fun sorry for the voice