One-Punch Man (Japanese: ワンパンマン Hepburn: Wanpanman) is an ongoing Japanese superhero webcomic created by ONE which began publication in early 2009.The series quickly went viral, surpassing 7.9 million hits in June 2012. The Japanese shortened name Wanpanman is a play on the long-running children's character Anpanman, wanpan being a contraction of wanpanchi ("one punch"). One-Punch Man tells the story of Saitama, an extremely overpowered superhero, who has grown bored by the absence of challenge in his fight against evil and seeks to find a worthy opponent. one punch man webcomic