Daikichi, a 30-year-old bachelor, meets the 6-year-old girl Rin at his grandfather Souichi's funeral. It is there that Daikichi and his family learn that Rin is Souichi's direct descendant. When the topic of who would care for her comes up, the family shirks all responsibility of raising this "shameful" child. Reacting emotionally, Daikichi declares his intention to take Rin into his home. This is the story of two very different individuals coming together under one roof and learning what it means to be a family, an experience that teaches Daikichi what it means to be a parent.