High school student Kyosuke Shikijo is the most talented member of the school's martial arts of the fist club. His late father was detective and Kyosuke share his father's strong sense of justice. Kyosuke also has a secret. Kyosuke likes to wear female underwear and transforms himself into the alter ego "Hentai Kamen," wearing female underwear and gaining superhuman powers. This unusual interest also comes from his parents, with his father a masochist and his mother a sadist. By chance, Kyosuke gets the underwear of female high school student Aiko Himeno. With her underwear, he gains various pervert techniques and attempts to protect Aiko from a dirty and heinous teacher.
Ryohei Suzuki
Yoshiko Sengen
Tsuyoshi Muro
Ken Yasuda
Nana Katase
Shunsuke Daitoh
Narushi Ikeda
Shun Oguri
Yoshinori Okada
Jiro Sato
Takashi Tsukamoto
Momona
Yuki Hirako
Haruka Kinami
Kentez Asaka
Shôta Chiyo
Musashi Mochizuki
Yosuke Omizu