One-Punch Man: Legend Of The Ultimate S-Class Hero

A 7-year-old boy who was supposed to lead a normal life receives the power of a mysterious powerhouse. Unfortunately, his parents sold him off to scientists interested in his power. Arriving at the laboratory, Xion discovers he isn't the only one to have been abandoned by his family... —————— This is a work of fan fiction using characters from the One Punch Man world, which is written by ONE. The story I tell here about Xion is my invention, and it is not purported or believed to be part of ONE's story canon. This story is intended for entertainment only and is not part of the official storyline. I am grateful to ONE for his wonderful story about One Punch Man, for, without his webcomic, my story would not exist. AN: Cover is not mine.