Takeshi finds several notebooks by his late aunt Taki Nunomiya, who never married. Through the notebooks Takeshi learns of his aunt's life. Prior to World War II, in a little house with a red triangular roof in Tokyo, Taki works as a housemaid. The family that lives in the little house consists of 3 members: the husband who works at a toy company, his beautiful wife Tokiko and their five year old
