This film is a new story adapted into a movie based on the real-life "boy killed his grandparents". Nagasawa plays the lazy and unrestrained mother Akiko, challenging a woman who has fallen into the dark side of society, while Abe Sada plays Akiko's husband Ryo, who lives with her without registering their marriage. The film will focus on the relationship between Akiko and her young son Shuhei (Guji Sho).