Natsuru Senō wakes up to discover one morning that he has transformed into a woman, upon which a stuffed animal tiger, Disemboweled Tiger, who introduces itself as a messenger, tells him that he has become a Kämpfer, which must do battle with other Kämpfer; since Kämpfer must be female, Natsuru transforms into a female version of himself.
Elenco: Marina Inoue , Yui Horie , Nana Mizuki , Yukari Tamura , Eri Nakao , Junko Minagawa , Kana Asumi , Kana Ueda , Kaori Nazuka , Kenji Utsumi , Yamakawa Kotomi , Mamiko Noto , Megumi Nakajima , Shiori Mikami , Yoshihisa Kawahara , Kazusa Aranami , Yuko Goto , Yuki Kobayashi , Michiko Nomura .