Wei Ying (魏婴, Wèi Yīng), courtesy name Wei Wuxian (魏无羡, Wèi Wúxiàn) 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. By extension, he is the son-in-law of Qingheng-Jun and Madam Lan, the brother-in-law of Lan Xichen, and the nephew-in-law of Lan Qiren.