This is a living space for the client’s two young daughters, and lots of time there will be family friends and kids coming over to enjoy the space. The stair and slide to the penthouse are the soul of this spatial design, and the integration of a bookshelf and multiuse storage box becomes the furniture for a different event. We do not give too much clear definition to the space; instead, we project the most flexibility and imagination to the user who is going to participate in the space in the daily future.