Claim: One-Punch Man tells the story of Saitama.

is an ongoing Japanese superhero parody webcomic created by an author using the pseudonym 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 -LRB- `` one punch '' -RRB- . 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 .   A digital manga remake of the series , illustrated by Yusuke Murata , began publication on Shueisha 's Young Jump Web Comics website in 2012 . The chapters are periodically collected and printed into tankōbon volumes , with twelve released as of December 2 , 2016 . Viz Media has licensed the remake for English serialization in its Weekly Shonen Jump digital magazine .   An anime television adaptation by Madhouse aired in Japan between October and December 2015 . It was dubbed in English during the summer of 2016 , and later that year a planned second season was announced .