Yukio is a typical high school student in every way except that he's an only child in a family of five. This is because he has four fathers, each with their own unique personalities and interests. The only thing they share in common is their love of their son. When Yukio witnesses a robbery, he becomes involved in a bizarre string of incidents involving his fathers.

• Yoshimoto Creative Agency
• Masaki Okada
• Shioli Kutsuna
• Shiro Sano
• Masahiko Kawahara
• Miyagawa Daisuke
• Jun Murakami
• Akira Emoto