After realizing that Izuku was quirkless, he was ridiculed by his peers and forced to realization. But, he then began reading an ancient book called Assassin Fist and study its principles and manifest the power of Mū no Hadō. He will meet some friends and develop a love interest in a black haired beauty and attend UA. But, can Deku, Momo and the others survive the true darkness of being heroes?