That was Blood-Eyed Dragon King Xiao Sha, the BOSS of the Rongtian Ridge world mission, Lao Wang’s senior brother, who KO’d Lao Wang’s wife and caused Lao Wang to enter the Valley of the Wicked. After that, he was imprisoned in the underground palace of Chiguo and was released by the majority of players.

PS: Lao Wang and Lao Xie’s classic CP passage, Lao Xie: Why don’t you explain? Lao Wang: Explanation, is it useful?