In "Hidden Sea Flowers", it is said that Xiao Ge is a character with a mysterious life experience. His father (non-biological father) came back from Nepal one year and brought back a baby as an infant, his little brother when he was a child and the designated heir of the current Zhang clan leader. Zhang Qiling was originally a member of Grandpa Four (Chen Pi A Si), but was borrowed by his uncle (later proved to be false, and his actual identity was Jie Lianhuan). Once he lost his memory, he was treated as a Kun by the Vietnamese, and was rescued by Si Chen Pi, who became his right-hand man. After that, I have been looking for my forgotten memories. Later, the meteorite jade that entered the ghost town of Snake Marsh lost her memory again.
In "Notes on Grave Robbery in Gu Lou", Wu Xie and Fat Man lead him to Bajiao to continue searching for lost memories, and the mystery of his life seems to become clear. After entering Zhang Gu Lou, he recalled and ended everything he didn't know.
Tell Wu Xie that he is the gatekeeper guarding bronze doors (Zhang Jia and Lao Jiumen agreed that everyone would take turns guarding bronze doors, but none of the old Jiumen kept their promise to guard bronze doors, all of them were guarded by Zhang Jia, and it was Wu Xie's turn this time). After stunning Wu Xie, he entered the "ultimate" (in bronze doors) to replace Wu Xie as the gatekeeper for ten years. Give Wu Xie another ghost, and tell Wu Xie that if he remembers him ten years later, he will come to Changbai Mountain with a ghost, and maybe he will meet him at the door and take his place.