The original space is a traditional vertical commercial facade, and its structure is a single-height, single-story structure with numerous pipe beams and columns. The height of the mezzanine is increased after careful consideration, so that the mezzanine on the second floor can see the outdoor scenery through the window, highlighting the interaction between indoor and outdoor, and making use of natural light as much as possible to allow people who use the space. It can view the outdoors, feel the nature, and reduce the use of artificial light in terms of energy saving.