The project is located in a commercial complex in Wuxi, Jiangsu Province, covering an area of 360 square meters, which is divided into upper and lower floors. First, the designer changes the location of the door. The exterior staircase is moved to the interior. While trying to ensure adequate lighting, the designer emphasize the sense of privacy in the whole space and the visual impact in architectural sense. The design of the second floor provides a variety of equipment and privacy space. From the first floor to the second floor, people's sight is first attracted by the stacked columns.