Asuka Naito (Riho Takada), a staff member of a high-class paid nursing home, is found dead after being pushed down the stairs of a park. Her cause of death was a brain contusion, but there was also a cord-like scar on her neck, and she seemed to have been strangled by someone just before she fell.
Satoshi Itomura (Takaya Kamikawa) finds worn-out work gloves among the belongings left behind. There were two layers on the left and right, and I could smell the faint scent of matcha from my burnt fingertips. When I asked where he works, it turned out that he had nothing to do with Asuka's work. Itomura wonders what she was using these gloves for.
As a result of her investigation, it turns out that Asuka interacted with home resident Sanae Isogai (Fuji Mariko) as if she were a real mother and daughter. Sanae said that she was away from home for about an hour on the night of the incident, but she only went out to a nearby convenience store for a walk. Also, according to a resident of the same apartment as Asuka, disturbing information surfaced that a man who seemed to be dating was waiting in front of Asuka's room on the night of the incident.
At that point, she finds out that her previous job in Asuka was a pastry chef, and at that time she was working towards her dream of having her own shop. Why did she give up on her dream?!Itomura, who investigated Asuka's days as a pastry chef, learned that an unexpected incident occurred two years ago...!?