The setting is in Yokohama. Hiroto Kanzaki works hard every day and night for the survival of a small ship repair factory (inherited from his father) as well as the survival of his mother and younger brother, who are suffering from health problems. Living such an underprivileged life, Hiroto has forgotten how to smile.
Nao is the daughter of a popular jewelry shop owner. She attends a prestigious exclusive women's college and
