As a children's play castle, it consists of a hall, a library space, a children's club room, and a junior and senior high school student's club room as a children's hall that can be used by many people from infants to high school students. The hall is a space where you can interact with each other across generations with a wooden frame. A futsal court, a second garden of the nursery school, etc. were placed across the road from the adjacent Kawatani nursery school, and the plan was integrated with the nursery school.