Tatsuya was the child that Rie had an affair with. Rie raised Tatsuya as a single mother and became a career woman who worked crunchy without making her feel pity. Tatsuya also understood the situation and helped with the housework without saying selfishness, but loneliness had accumulated. When Tatsuya went on to college, Rie went to an inn with Tatsuya to consume the paid leave he had accumulated. However, Rie was still thinking about her work even when she was here.