Deku's descent into madness (MHA AU [oc insert])

All of Izuku Midoriya's Life, he has wanted nothing more to become a hero just like his Idol, Allmight! Getting a Quirk from Allmight made it so he could get into U.A. and achieve this dream! So far he has made many friends, enemies, and is well on his way to be a hero! However when a suspect of many mysterious and un...