Hana, the daughter of psychotherapy director Kubo Shiro, suffered a traffic accident with her mother and sister, leaving her legs badly hurt, her mother in a vegetative state, and her sister suffering from a severe burn on her face. Yotsui Jun, a high school student, appears in front of Hana, he is investigating the cause of her mother's loss of mind. Hana gradually communicates with Jun, but one day Shiro suddenly returns home with her mother who has awakened from her vegetative state after 5 years. Shiro rejoices at the family reunion after a long time, saying, "A miracle has happened," but Hana feels uncomfortable. "She's not my mom."