Kotone (Tomoka Kurotani) is the wife of Mitsuru Kiba (Kazushige Nagashima), boss of the Kiba gang in the Saikyo Alliance. She hides a girl named Sakura Nishizawa (Rina Koike), who is chased by Azami (Natsuki Harada). Azami is the wife of Kato (Masayuki Imai), boss of the Kato gang in the Saikyo Alliance. Years ago, Azami's lover was murdered by Mitsuru Kiba. To get revenge, she married Kato. Through the girl Sakura Nishizawa, Kotone and Azami unexpectedly meet and become involved in a large conspiracy.