One-Punch Man (ワンパンマン Wanpanman) is a franchise created by ONE. The webcomic started in July 2009, with more than 10 million views and 20,000 hits per day. Shueisha’s Young Jump Next picked up the series after Yusuke Murata contacted ONE and proposed to redraw the comic for digital publication as well.
The first chapter of the manga was published on June 14, 2012. The manga series began publication in Viz Media’s Weekly Shonen Jump (Shonen Jump Alpha at the time) in North America on January 21, 2013. The first digital volume was released in February 2014. The manga was released for print in the United States starting on the 1st of September, 2015. Wikipedia