I just found out that Gu Qingpei is He Gu's (Intoxicated Love MC) boss. LMAO

Welcome to 188 Group.
All of them share the same universe, cause they are all from the same author.

additional inheritance
Sissy
winner takes all
Grey Uncle and the Mixed-blood Prince
Yet You're In Love with an idiot
my little poplar
Professional Body Double
years of intoxication
Beloved enemy
blazing armour
alpha predator ( This one is an ABO, but the rest of the group is in there too, just another timeline)