Izuku Yagi was once a happy boy with his sister till the day that they foundout he was quirkless and then the his sister , his friends the world turned their backs on him .Izuku wanted to kill himself till he met a rich and tough looking man that told Izuku to go with him to place with family ,friends and he would be his farther but even though this was all true Izuku would have to become an assasin and he was perfectly fine with that.