Swallow (Assassin Izuku)

At age four, Izuku Midoriya was diagnosed quirkless. Later that night, he was accepted into a life long program for the quirkless. From the age of five, he has been training to become a professional assassin. At 15 he is the worlds most famed assassin, known by almost everyone. One day, he is assigned to guard a class of heroes from a group suspicious figures. Little did he know what awaited him.