My mother, Sayuri, and my son, Noriyuki, came on a family trip together. Originally, Noriyuki was a shy boy, but there was one event that made him lethargic. It was that I saw a traffic accident of my husband who died a few years ago in front of me. It was a time when I was still feeling awkward with my second wife, Sayuri. Since then, Noriyuki has been attending a psychiatric hospital. For this trip, I decided to take Noriyuki to the recreation center of the factory where I work as part of my treatment. However, Sayuri is ... on this trip.
