One tacit understanding is that simplicity is the hardest part of design. Reduce finishes, enrich the space with volume cuts, stacks and colliding lines and materials. This case USES the simple and powerful brushwork, causes the wood and the stone phase to produce the common structure, causes the pure space temperament to flow in the Xuhui city space design. In the space, the subtraction strategy is used to remove various decorative parts and structures, and create the texture of the internal space through the bump and level of the volume. Use terrazzo to make individual blocks to create a jump-off dynamic visual effect. Natural light is introduced through the space between the volumes, the light itself gives the terrazzo color gradient, highlighting the shape of light and shadow and virtual and real changes.