О One Punch-Man
From Viz:
Every time a promising villain appears, Saitama beats the snot out of ’em with one punch! Can he finally find an opponent who can go toe-to-toe with him and give his life some meaning? Or is he doomed to a life of superpowered boredom?
Note: Was nominated for the seventh annual Manga Taishō Award in 2014, an Eisner Award in 2015 and a Harvey Award in 2016. Won the Sugoi Japan Award and the Spanish Manga Barcelona award in the Seinen category in 2017.
(https://tonarinoyj.jp/episode/13932016480028985383)
(https://www.viz.com/shonenjump/chapters/one-punch-man)
Created by ONE, MURATA Yuusuke, first published in 2012, One Punch-Man spans genres including Action, Adventure, Comedy, Drama, Sci-fi, Seinen, Supernatural, currently ongoing.