Masami Nagasawa (Akiko Misumi)Sadao Abe (Ryo Kawata)Halo Asada (Fuyuka)Sho Gunji (Shuhei (child))Kaho (Aya Takahashi)Hana Kino (Masako Misumi)Sarutoki Minagawa (Tamori Uji)Taiga Nakano (Keiichi Akagawa)Daiken Okudaira (Shuhei)Kaho Tsuchimura (Kaede Misumi)
Akiko (Masami Nagasawa) is a single mother and her son is Shuhei (Sho Gunji). Akiko casually has sex with other men, including Ryo (Sadao Abe). Akiko is the only person whom Shuhei can rely on. One day, Shuhei makes a shocking decision.