OK SO TWO THINGS
First, Only cultivators can have mind demons but when the mind demon first appeared for Lu Qingyun, he was still a kid who was considered a cultivation swine and had no knowledge of cultivation. Sumn happened before he lost his memories as a kid I'm SURE
He HAS be related to Zhou Zikun
Second, so that's the reason why Xie Qingxuan considers himself a lowborn huh since a civilian gave birth to him
Something something