Yong Yu had been courageous and brave for many years.
It was said that it was one of the nine pieces of star jade set by Goddess Nvywa in the sky to absorb Gonggong Dragon Qi. It was later scattered in Kun City, and was called "Kunlun Jade" Jiangzhou. According to the Legend of Mu Emperor, King Mu of Zhou had been on a trip to Mount Kunlun to the west. The Queen Mother of the West arranged a banquet for him. Before leaving, King Mu of Zhou left by saying, "Conquer jade of Zhou, take three ruments of jade, and take ten thousand jades". The Queen Mother of the West also gave the jades to King Mu of Zhou to take back to the Central Plains. After the State of Lu was destroyed in the last period of the warring state, the jade was owned by the Qin Shihuang, and then robbed by the Fang Shisheng.
