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A Hopeless Swimmer's Counterplan (カナヅチ対策, Kanadzuchi taisaku) is an extra chapter included with Volume 15.


While at the beach, Saitama asks Genos if he could swim. Genos explains that Dr. Kuseno has prepared some parts for him to be able to swim and left to prepare them. While relaxing in the ocean, Saitama wonders where Genos is and calls out his name. Suddenly a telescope lift Saitama, revealing Genos as a submarine with Saitama yelling at him to get a hold of himself.

Characters in Order of Appearance[]

  1. Genos
  2. Saitama


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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
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Volume 22
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Volume 24
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