Chieri is a sixth-grade elementary school girl. Her father passed away when she was young, so she lives with only her mother. Chieri's sole companion was a stuffed doll named Cherry, which she discovered in a storage room during her father's funeral. In Chieri's fantasy world, Cherry talked and played with her, offering advice and protection in her father's stead. Chieri visits her grandmother's house for the first time in a while to attend her father's memorial service. There, she finds a stray dog on the verge of giving birth to puppies. However, a crow and a strange monster appear, attempting to take the pups. Can Chieri and Cherry save their lives?