Yamame grew up in an orphanage. When she turns 18 she is informed that her grandparents are alive. She goes to live with her dementia afflicted grandma and meets an odd caregiver, Tanishi.

In the city of Tokyo, Ryo and Nakamura walk to their jobs at the suburban railway company where they work fixing the problems produced by the train suicides. Ryo handles the removal of the human remains. Nakamura charges the fine to the family of the deceased because the suicide interrupts the railway service. Saki, a young girl, wanders around the city contemplating her apathetic society. Her walk eventually reaches a train platform where Ryo sees her. Their meeting of eyes changes the direction of their lives forever.