The animation celebrates the 60th anniversary of Soka city. Souta, a Tokyo resident who originates from Soka, makes his way back to his hometown with the aim of finding a new residence for himself and his fiancé, Miki. During his house-hunting adventure, he runs into a mystical bird and sets off in pursuit. His pursuit leads him to cross paths with Akiko, a woman who has time-travelled into the future. As Souta takes her on a tour of the city, Akiko reflects on how much has transformed and contemplates her engagement and future.