Kenji Fujima, who lives alone in Shanghai, met Akira Sendō, another victim of the car accident, by chance while facing his mother's death in a car accident.
Five years later, Fujima Kenji met Rukawa Kaede who came to Shanghai to find his relatives on the subway at midnight. Kenji Fujima was brought into a different world of scars by Rukawa Kaede.
The encounter between the three people unfolds in the shadow story of the previous generation...