This project is the interior renovation of an old apartment. In the pre-design process, the overall design idea was made with the owners after repeated communication. Except the basic “living” function, the young couple is used to inviting friends to visit, a certain working space and children’s activity space are also needed. Since the constructional and conditional restrictions of apartment building and interior space, the inherent spatial structure is basically unchangeable. Designers attempt to integrate the space and take the kichen as the core of overall arrangement. In order to generate more contact with living room and restaurant, the presence of partition is dispelled to open the space and, in the meantime, allow the entire room to enjoy adequate natural lighting.