There is an old saying that has been circulating in the underworld -
"People have two lives, one is birth and the other is reincarnation."
"People die twice, one is death and the other is not returning to Sichuan."
At the same time, among the ten taboos in the underworld, the eleventh taboo is crookedly engraved - No return to the river, the living beings will stand still.
Lu Yuanshu woke up to find that his house had been "stolen", and in the end he had to settle for the next best thing and start sharing a house with the idiot who stole his house.
Two things that are neither human are pretending to be human (pretending to be human in the physical sense)
Don't do human affairs attacks & don't want to be treated as a human being
Purpose: retribution for injustice