From Hero To Villain To Vigilante

After the license exam incident you decide since no one want a ex villain to save them especially one that has killed without batting an eye. So you did the only thing that made sense in your head, you accepted Shigaraki's offer and rejoin the league of villains. But this time for good.

Well that's what he thought until he met a certain girl that caught his attention enough to change him back a certain girl with a super powerful quirk. She changed him for the better and he knows it to.
(This is the second book of The Surprisingly Strong Quirk)