This is a playhouse located underground behind the market building on Forest Street. It consists of many cube-shaped building blocks, which are piled on the walls, floor, ceiling, and every corner of the playhouse. Various toys are placed on the building blocks: dolls, little yellow ducks, toy soldiers, etc. Although they were all lying quietly, the terrifying atmosphere for some reason made people feel as if they would come alive in the next moment.

The game house adopts a purple color scheme as a whole, the light is dim, and the atmosphere is low and depressing, making people breathless. There was only a beam of yellow light coming from nowhere, swaying gently.