Yan

He was first introduced when he was running away after being seriously injured and ran to Heaven Mountain. He was found by Gu Ruoyun and fed a pill, after he woke up he tried to attack her but was subdued by Zixie.

When the Lianqi Sect came to the Xia Family he refused to help Gu Ruoyun but after seeing Qianbei Ye he immediately regretted his decision and ultimately formed a slave contract with Gu Ruoyun. Which means if he ever tries to disobey her again he will lose his life and sent to burn in hell for eternity.