Nagisa is transgender. She grew up in Hiroshima as a man, but now lives in Shinjuku, Tokyo as a woman. Due to an incident, she begins to live with middle school student Ichika, who is a distant relative. Ichika has been neglected by her mother Saori. From living in solitude by herself, to now living with Ichika, Nagisa develops maternal instincts for the first time.
Cast and crew