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.
Tsukasa Naruse works as a detective. He is enthusiastic with his job. To catch criminals, he sometimes breaks rules that detectives should follow. Tsukasa works on a voice phishing case that targets elderly people. He targets a suspect without a warrant. Due to his, Tsukasa gets transferred to the police musical band.
A family moves into a house, but discover that it is haunted by a murdered girl.
