Ye Bei, an ordinary delivery boy, was accidentally hit by a mysterious meteorite fragment and awakened the [One Punch Man Development System]. As long as he completes daily exercise tasks (such as 100 push-ups), he can unlock Saitama's template skills. However, the system is a "lazy version", and the amount of training is only 1/10 of the original version, but it can instantly acquire abilities such as "serious punch" and "super-speed movement". The price is a slightly receding hairline and being underestimated by society. The iconic features are a bald head, a black delivery uniform and a cloak. From then on, he delivered food during the day to avoid his aunt's rent collection, and transformed into a masked hero "Bald Man" at night, killing mutant monsters in the shadows of the city with one punch. However, because he fought too fast, he was always recorded as a "supernatural incident" by surveillance cameras.
