"Happiness with the Sword". "Happy Sword" is the first anniversary theme song of "Jianxia World 3" jointly produced by Xishanju and Xuanzang Studio. It is sung and composed by Xuanzang and lyrics by Yuzi of Jianxia World. Excerpt from the lyrics: "We push cups and exchange cups without leaving, the night rain echoes lonely, we take advantage of the troubled times to fight side by side, and our fame spreads thousands of miles away."