Unhappy after his new baby sister displaces him, four-year-old Kun begins meeting people and pets from his family’s history in their unique house in order to help him become the…

Kyuta, a boy living in Shibuya, and Kumatetsu, a lonesome beast from Jutengai, an imaginary world. One day, Kyuta forays into the imaginary world and, as he’s looking for his…