narikuyasu

One-Punch Man is a webcomic created in 2009 by a Japanese who goes by the pseudonym of ONE. The plot is actually a satire of the superhero genre. In it, the main character Saitama is invincible as a superhero and could defeat any villain with a single punch. Because Saitama is so strong and unbeatable, he no longer feels the challenge of being in any fight. As a result he wears deadpan expression most of the time.