A mother who worries about her son living alone in the city goes to Tokyo to see him. Without booking a hotel, the mother ends up staying in her son's small one-room apartment. At first, the two of them are having a lively conversation about trivial things, but when the mother sees her son, who she hasn't seen in a long time, grown up, she realizes that he is now a man. In fact, the son also felt that his mother was a woman. A subtle atmosphere gradually began to flow through the small room.
