One-Punch Man Wiki

"Prison" (ぷりズン, Purizun, VIZ: Purison) is an extra chapter included with Volume 4.


Speed-o'-Sound Sonic is seen being restrained by various special equipment invented by the Hero Association as the security guards bring him to his cell. Sonic is brought to the "Smelly Lid Prison," a detention facility for the most vicious criminals. The senior inmates attempt to have some fun with Sonic, but quickly realize that they have underestimated him. Sonic declares to the other prisoners that he will kill all of them to make his stay at the prison enjoyable. Angered, the other prisoners start to fight Sonic one on one. However, this quickly angers the boss of the prison and all of the prisoners, except Sonic, try to better their behavior. It is then revealed that it was the boss of the prison that brought order to the prison and forced the prisoners to cooperate and behave. The Smelly Lid Old Man tells Sonic that Puri-Puri Prisoner is a homosexual and turned himself in to the prisoner in order to "legally" harass boys. After the lecture, Puri-Puri Prisoner finds out that Stinger is in danger on the news and decides to go and save him. Puri-Puri Prisoner escapes the prison by making a large hole through the wall. Sonic uses the hole to escape as well.

Characters in Order of Appearance[]


Volume 1 12345678Extra
Volume 2
Volume 3 1617181920ExtraSpecial
Volume 4
Volume 5 2526272829Extra
Volume 6
Volume 7 353637Extra 1Extra 2Extra 3
Volume 8
Volume 9 41424344454647Extra
Volume 10
Volume 11 565758596061Extra 1Extra 2
Volume 12
Volume 13 68697071Special
Volume 14
Volume 15 7677787980Extra 1Extra 2Extra 3
Volume 16
Volume 17 858687Extra
Volume 18
Volume 19 91929394Extra
Volume 20
Volume 21 979899100101Extra
Volume 22
Volume 23 107108109110111112Extra