Based on the continuation of the cactus plants and Wabi-sabi aesthetics established in the demonstration zone, as a mountain transformation type project, the south garden project faces challenges from the site: early development construction has caused damage to the site and mountain texture, resulting in the greenery of the valley abruptly ending beyond the red line of the land plot; on the site with a vertical drop of nearly 35 meters, the landscape space is compressed extremely limited by the high-density buildings left over from the previous development. To overcome the limitations of the site, we focused on restoring the connection between the site and the mountain, as well as between humans and nature, and adaptively establishing the “skeleton” of the landscape design. Through the design and creation of the most essential elements of landscape design, terrain and plants, we aimed to handle the elevation changes in a natural way, maximize the spread of greenery in the community, and restore the natural feeling of the mountain and forest land.