Liu Haichan was a (c. 10th century) Daoistxian ("transcendent; immortal") who was a patriarch of the Quanzhen School, and a master of neidan "internal alchemy" techniques. Liu Haichan is associated with other Daoist transcendents, especially Zhongli Quan and Lü Dongbin, two of the Eight Immortals. Traditional Chinese and Japanese art frequently represents Liu with a string of square-holed cash coins and a mythical three-legged chanchu (蟾蜍; "toad; toad in the Moon"). In the present day, it is called the Jin Chan (金蟾), literally meaning "Money Toad", and Liu Haichan is considered an embodiment of Caishen, the God of Wealth.