One Punch Man is a webcomic written and drawn by ONE. It is published on the author's personal website since 3 June 2009. The series has become very popular over 10 million visits with an average of 20,000 per day. The manga adaptation series designed by Yusuke Murata has been published since June 14, 2012 in the online magazine Tonari no Young Jump. Adaptation in anime is announced in March, 2015 in the magazine Young Jump. The series is broadcast since October 5, 2015 in Japan.
The opening theme song is "The Hero!! ~Ikareru Ken ni Honō o Tsukero~" (The Hero!! Set Fire to the Furious Fist) by JAM Project, and the closing theme is "Hoshi Yori Saki ni Mitsukete Ageru" (I'll Find It Before the Stars for You) by Hiroko Moriguchi.
