Introduction to the stage behind Xuanjian Tower: Entering the second courtyard from Xuanjian Tower, you can see the Le Tower built close to Xuanjian Tower. The Lelou is a single-eave, hilltop-style building with a roll-roofed stage in front of the building. There are eight-character walls on both sides of the stage, with green glass reliefs embedded on the walls. The middle of the stage is empty, allowing people to enter and exit during normal times. When singing, the floor slabs are placed on the stone platforms on both sides to form a complete stage. In fact, the Xuanjian Tower was built first, then the Le Tower was added, and the stage was built last. But three buildings from different periods are integrated here, seemingly integrated, which is breathtaking.