This was an attempt to build a garden in the greenway of Dongguan Songshan Lake 4A Scenic Zone. The contrast between yin and yang in two boxes blends the charming misty rain of Songhu Lake and impulses of nature into the dynamic sightseeing route. Here, one box expands, with vitality bursting out in unbridled flows. Another box retracts, creating an enclosed space for watching the sky and enjoying the condensing mist. One box experiences the vigorous beauty of bright sunshine, while the other captures the gentleness of crystal moonlight.