One day, the monarch and his subjects were at a loss when they discussed the state affairs and mentioned the princess's illness. At this time, Wei (a native of Xingtai, Hebei Province), a Taibao university student, suggested to the emperor that in Xing Zhou's hometown, there was an old man from the Lujia family who made medicinal liquor with homemade grain wine, which was particularly effective and could "kill all kinds of poisons, dredge the blood vessels, thicken the stomach and regulate yin and yang". Fiona Fang is famous for its hundred miles and has cured countless neighbors. The ministers echoed, and Kangxi nodded in agreement.

The fast horse galloped for more than 400 miles and retrieved Lujia medicinal liquor on the same day. Strange to say, the princess began to eat on the same day after drinking this medicinal liquor, and she was able to walk around in the fields three days later. A month later, she was well as usual and she was very happy. She decreed that the old people in Taihang Mountain would enter the palace, and she was appointed as a gold medal physician in Taiyiguang, specializing in the health care of the royal wine channel. In the twenty years since he entered the palace, Mr. Lu has successively dedicated nearly 100 kinds of heirloom skills to the royal family, such as Tongjiu, Medicinal Liquor, Jiuyang Zhenjiu, Zhuifengwang Liquor, Nigerian Liquor and Meiyu Liquor. At the age of 90, Mr. Lu resigned and returned to his hometown, and the emperor remembered his hard work. Not only was he allowed to resign, but he was also named "Imperial Wine Hall". The Royal Wine Hall got its name from this.