It is said that Liu An, the grandson of Liu Bang in the Han Dynasty, attacked his father and made him the king of Huainan. He is a "good book" and versatile. He once called the alchemist Su Fei, Li Shang, Tian You and other "Bagong" to forge a panacea in Beishan (later Bagong Mountain) in order to live forever. After many years, Dan did not refine it again, but accidentally made tofu. Later, people honored Liu An as "Tofu God". It is said that Liu An, the grandson of Liu Bang in the Han Dynasty, attacked his father and made him the king of Huainan. He is a "good book" and versatile. He once called the alchemist Su Fei, Li Shang, Tian You and other "Bagong" to forge a panacea in Beishan (later Bagong Mountain) in order to live forever. After many years, Dan did not refine it again, but accidentally made tofu. Later, people honored Liu An as "Tofu God".