Sayuri married a divorced co-worker with a child at her workplace... It was her first marriage, and she became the mother of a teenage boy, Shinji. However, her relationship with Shinji was not good, and she was having a hard time dealing with him. One day, her husband, who she could rely on, was going on a business trip for two days and one night, and her anxiety grew... Then, on the day of the trip, Sayuri made up Kokoro...