The stacked volumes clench together like stones, and the upturned walls of the modern building suggest a "container" image. Roof drainage is an important technical issue in construction systems and is often concealed by structural design. In the villa will reveal the downspout intentionally, as a kind of river flow and the image of the waterway. The silver waterway, hanging on the wall, layers of falling, for the horizontal expansion of the space container, added a vertical dynamic force, forming a "full water overflow" imagination.