Mitsuno, a housewife in her 40s, is happy with her life but works part-time at a local restaurant to refresh herself. One day, a new college student, Matsumoto, joins the company. Mitsuno acts as a good mentor to the clumsy but hardworking Mitsuno, and gradually their relationship of trust deepens. Matsumoto begins to fall in love with Mitsuno, despite knowing she is a married woman. Mitsuno, who realizes this young love...