It tells the story of Saitama, an independent superhero who, having trained to the point that he can defeat any opponent with a single punch, grows bored from a lack of challenge.

A digital manga remake, illustrated by Yusuke Murata, began publication on Shueisha's Tonari no Young Jump website in June 2012.

In North America, Viz Media licensed the remake manga for English language release and has serialized it in its Weekly Shonen Jump digital magazine.

Licensed in North America by Viz Media, the series aired its first season in the United States on Adult Swim's Toonami programming block from July to October 2016.

The story is set on a supercontinent version of Earth on which powerful monsters and supervillains wreak havoc.

Later, shortly before her death, the seer Shibabawa predicts that the world is in great danger as the alien Boros invades the planet.

The Hero Association assaults the headquarters to rescue the executive's son, causing a battle that destroys City Z and kills almost every monster.

Saitama meets the highest-ranked hero Blast during the raid when he arrives to collect artifacts, who warns him of a threat known as "God".

Saitama goes back in time and subdues Garo before he kills the heroes, destroying his monster mutation and cosmic power.

[5][6] The Japanese shortened name Wanpanman is a play on the long-running children's character Anpanman,[7] wanpan being a contraction of wanpanchi ("one punch").

But inside One-Punch Man's universe, I made Saitama a sort of guy who was capable of adapting his life to the world that surrounded him, only armed with his immense power.

In February 2010, he put the series on hiatus, deciding to take a one-year break due to family circumstances.

"[12] Murata, already a successful manga artist, used his connections in the industry to get a publishing deal with Weekly Young Jump comics.

[19] In June 2014, One-Punch Man was one of a number of series that Viz made available on the digital distribution platform ComiXology.

Set Fire to the Furious Fist") by JAM Project, and the closing theme is "Hoshi Yori Saki ni Mitsukete Ageru" (星より先に見つけてあげる, "I'll Find It Before the Stars for You") by Hiroko Moriguchi.

[29] Additional original video animation (OVA) episodes are included with Blu-ray Disc/DVD volumes of the season, the first of which was released on December 24, 2015.

"Quiet Apostle") by JAM Project, and the closing theme is "Chizu ga Nakutemo Modoru kara" (地図が無くても戻るから, lit.

[61] On August 22, 2019, a mobile game titled One Punch Man: Road to Hero was released for iOS and Android.

[62] Blizzard Entertainment announced an Overwatch x One-Punch Man crossover collaboration event on February 6, 2023, which ran from March 7 to April 6 of the same year.

[70] The webcomic was considered an instant success shortly after its inception, receiving thousands of views and comments within weeks.

[10][71] One-Punch Man was one of the Manga Division's Jury Recommended Works at the 17th and 18th installments of Japan Media Arts Festival in 2013 and 2014, respectively.

[84] Once released in the United States, both the first and second volumes debuted on the New York Times Manga Best Sellers list, in first and second place respectively, and remained there for two weeks.

The site's critics consensus reads, "With its state-of-the-art animation, unorthodox hero, and gut-bustlingly funny jabs at the shounen genre, One-Punch Man is simply a knockout.

Although the humor, characters, and story were still praised, reviewers unanimously criticized the drop in the quality of the animation following the change of studios.

[88] Screen Rant noted that fan reaction to the season was divided, with their response to the new animation being notably negative.

[89][90] They criticized the drop of quality in animation as well as the change of director, saying "One-Punch Man was previously crisp, detailed and fluid, but many fans claim that the latest season has felt static, bland and uninspiring.

However, they believed the season "improves in terms of story, character and world-building", although they mostly attributed this to the original manga its based on rather than the anime series' staff.

Gone are the intricately detailed character action shots, with dynamic slow motion and constantly-shifting camerawork.

Instead, we have flashes, cuts to black, and machine-gun punches all reminiscent of the drawn-out fight scenes of Dragon Ball Z from more than twenty years ago."

"[91] In 2019, One-Punch Man won the "Most In-Demand Export from Asia" at the second Global TV Demand Awards.