Kimihiko Onizuka is a salaryman infatuated with maiko (apprentice geisha) and whose greatest goal in life is to play a party game called "yakyuken" with one.

• Sadawo Abe
• Ko Shibasaki
• Shinichi Tsutsumi
• Saori
• Kotomi Kyōno
• Wakana Sakai
• Shirō Itō
• Takayuki Yamada