One-Punch Man Vol. 4

If you trained so hard to become a superhero that you even lost your hair, you'd want a little recognition, right?! At the very least, you'd expect the monsters you go up against to put up a bit of a fight! Unfortunately for Saitama, both respect and challenging opponents prove elusive.
Follow the shiny-domed hero of One-Punch Man in his journey to reach the top of the Hero Association ranks while protecting Z-City!
Vol. 4 contains chapters "21st Punch" to "24th Punch" plus the extra chapter "Prison."
Notice: This manga is written in Japanese.