Saitama is an average-looking man who trained so hard he lost all his hair and became so strong he can defeat any enemy with a single punch. Now he wanders around looking for a fight that actually challenges him. Created by ONE in 2009 as a self-published webcomic, this is the original rougher version of the story that inspired Yusuke Murata's detailed manga remake. The webcomic is still ongoing with irregular updates.

Read One-Punch Man webcomic in English, updated when available. Also known as: ワンパンマン · Wanpanman · One Punch Man (ONE) · OPM Webcomic