Hiroshi (Ryo Kase) is a government veterinarian at an animal protection center. He carries out his work following government laws. His work is to slaughter dogs and cats that are abandoned. Hiroshi is distressed about his work, but he reminds himself that somebody has to do the work. His colleague, Aki (Erika Toda), also suffers from a sense of guilt over her work.

Ayako (Yuko Tanaka) is assigned as the new director of the animal protection center. Ayako tries to change the situation of the animal protection center. The killing of animals are reduced, but they face a decision.