Filmed in live action and rotoscoped to animation, this adaptation based on the manga of the same name by Takashi Imashiro follows 11-year-old Karin who finds herself abandoned by her father, left to stay with her grandfather in a small Japanese town. Her grandfather asks Anzu, his jovial and helpful, although rather capricious, ghost cat, to look after her. As their spirited personalities collide, sparks fly, but Anzu's slacker-with-a-heart-of-gold attitude soon wears thin when the two go on an impromptu adventure to reunite Karin with her parents.