Wei Ying, courtesy name Wei Wuxian, is the founder of Demonic Cultivation and a former disciple of the Yunmeng Jiang Clan. He is the only child of Wei Changze and Cangse Sanren, the martial nephew of Yanling Daoren, Xiao Xingchen, and Jiang Fengmian, the martial uncle of Jin Ling, and the husband of Lan Wangji. Wei Wuxian died in the First Siege of the Burial Mounds thirteen years prior. He returns to the living world in the body of Mo Xuanyu, who summoned Wei Wuxian's soul through a ritual.