The story takes place in a sanatorium for the mentally ill - Hidemaru Kajiki (Laughing Fukutei Tsuruga), who was once sentenced to death for killing his mother and wife, miraculously escapes from death during the execution, Nakayoshi (Tsuyoshi Ayano), who used to be an ordinary office worker but was discriminated against because of his increasingly severe hallucinations, and ultimately lost his job and life, and Yuki (Nana Komatsu), who is a girl high school student but strongly resists going to school and spends all her time locked up in her room as a squatter. Yuki (Nana Komatsu) is a girl's high school student who resists going to school and spends her days locked up in her room as a squatting member of the family, and is eventually sent to a sanatorium by her parents, who have reached the end of their patience. A variety of patients live here, each with a tragic past, but they form a special bond with each other that is similar to family but more like it, but a murder shatters this hard-won equilibrium.