One Punch Man, with its superhero storyline, not only features martial arts combat but also incorporates humorous elements that greatly appeal to readers.
One Punch Man is a highly acclaimed manga and anime series with an engaging plot and a cast of interesting characters. The high-octane action and superpowers found in the series have made One Punch Man one of the most beloved shounen anime by fans. However, the overwhelming power of the main character, Saitama, is also a subject of much debate.

Additionally, there is debate over whether One Punch Man is truly considered a shounen series or not. Contrary to popular belief, the manga was published in a seinen magazine in Japan, indicating that the target audience is young and mature males (from around 18 to 40 years old).
So why is One Punch Man officially classified as a seinen series rather than shounen?
Created by ONE as a webcomic in 2009, One Punch Man was adapted into a digital manga in 2012, published by Tonari in Young Jump, a spin-off publication of the seinen magazine, Weekly Young Jump. The manga features a dark and violent story, with gruesome imagery, making it the most suitable for adults.
However, the debate over the classification of One Punch Man becomes even more complex in the West. The series is published here by Viz Media, using the title 'Shonen Jump' to distribute the content.
In other words, this means that One Punch Man is grouped alongside other shonen manga targeting teenage audiences like My Hero Academia and One Piece.

One Punch Man is a satirical superhero and shonen manga, employing some elements not commonly seen, such as Saitama's near-infinite strength. While My Hero Academia is a straightforward shonen series that adheres to the genre's concepts without straying from the predetermined path.
Ultimately, despite the contentious genre classification of One Punch Man, the series is still beloved for bringing readers the best of both worlds. It's a story for adults, blending the humor of shonen manga.