Zhuliu Wen

Wen Zhuliu (温逐流, Wēn Zhúliú) was a servant of the Qishan Wen Sect who acted as one of Wen Chao's protectors. He was known as the Core-Melting Hand (化丹手, Huādān shǒu).

(Source: Mo Dao Zu Shi Wikia)