After a life-changing incident, timid college student Koichi Haimawari accepts an offer from revered vigilante Knuckleduster to train as his protégé.

Shuichiro Umeda
Koichi Haimawari (voice)

Ikumi Hasegawa
Pop☆Step (voice)

Yasuhiro Mamiya
Knuckleduster (voice)

Sayaka Senbongi
Kuin Hachisuka (voice)

Hinako Takahashi
Hachisuka's Friend (voice)

Anri Katsu
Jube Namimaru (voice)

Hiroaki Okuda
Ichimoku Samazu (voice)

Asami Seto
Makoto Tsukauchi (voice)

Kohsuke Toriumi
Soga Kugizaki (voice)
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