One-Punch Man Wiki

Confidence (自信, Jishin) is an extra chapter included with Volume 17.


Following on from Speed-o'-Sound Sonic's decision to eat a Monster Cell[1], Sonic has diarrhea for the whole night. After the ordeal, Sonic believes he has become a monster and that while, he hasn't changed his appearance, his body has undergone a massive change. He has vindictive thoughts about Gale Wind and Hellfire Flame for not telling Sonic about the diarrhea. However he puts the thought aside as he never planned to join the Monster Association, he feels great power within himself. Feeling lighter and more powerful, Sonic is brimming with confidence and states that he will need time to adjust to his new body. In reality, Sonic just lost 2 kg from his diarrhea and is mistaking his condition as his new monster form.

Characters in Order of Appearance[]

  1. Speed-o'-Sound Sonic
  2. Gale Wind
  3. Hellfire Flame


  1. One-Punch Man Manga; Chapter 78


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 68697071ExtraSpecial
Volume 14
Volume 15 7677787980Extra 1Extra 2
Volume 16
Volume 17 858687Extra
Volume 18
Volume 19 91929394Extra
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Volume 22
Volume 23 107108109110111112Extra