A widower and his daughter encounter a girl claiming to be the reincarnation of the man's late wife, eventually accepting her into their lives as they grapple with their grief.

The story follows Keisuke Niijima-who lost his beloved wife, Takae, ten years ago-and their daughter, Mai. They have been in a state of despair since Takae's death. One evening, an elementary school girl visits the Niijima family claiming to be the reincarnation of Takae. At first they don't believe her but the girl continues to give them information that only the family knows. Keisuke and Mai soon recognize her as Takae and the three begin to act together as a "family."—Crunchyroll News

Keisuke Niijima has lived in grief since his wife, Takae, passed away 10 years ago. But when a young girl visits, claiming to be Takae reincarnated, Keisuke and his daughter, Mai, are drawn into a miraculous reunion. As the girl reveals intimate details only they could know, the Niijima family slowly begins to heal, rediscovering love and warmth in the most unexpected way.—Crunchyroll