Due to the decreasing birth rate of contemporary population, this project has been designed to accommodate functions other than kindergarten, such as serving as a sales office before project delivery. A landscape core is placed in the middle of the building, and each functional block is spread around this landscape core, which can be accessed in all directions.When the building is used as a sales office, two model houses are arranged as temporary buildings on the activity ground of the future kindergarten, and the south-facing site with sufficient light can accommodate a variety of activities.