Introduction to the Legend of Swan Lake: A long time ago, Qin Shihuang came to Sanxian Island in the East China Sea in search of the elixir of immortality. In order to get the medicine on the island, Qin Shihuang ordered the reclamation of the sea to build a bridge, and asked his wife to come and deliver food when she heard the gong. . One day before noon, a bird flew around and hit the gong, so the wife hurriedly delivered the meal. When Qin Shihuang saw that he violated orders, he was furious and executed him. Qin's wife was wronged and her tears flowed into a river. When the river overflowed, it formed a "Lake of Tears", and the white swan was the incarnation of Qin's wife.