Male, father of Gu Xubai and Gu Mingyan. Described as an extremely selfish bastard. He was already married when he deceived a young girl (Gu Xubai's mother), got her pregnant, then abandoned her and returned to being a good husband and father. Gu Xubai's mother later fell into depression and committed suicide by sleeping pill overdose. Gu Xubai plans to destroy Gu Zhentao's business empire and social status.