Kawano Ayu (Ueto Aya) and her husband, Tetsu (Oizumi Yo), are shocked when his son, Yuki (Shibuya Takeru) suddenly speaks of wanting to take entrance exams for elementary school. Tetsu insists that he goes to a local public school, but Yuki wants to go to school with his crush, Uematsu Riko (Koide Chisaka).