Folk Rules: the Embalmer's Taboo Copy

Strangeness has arrived, and the folk taboos of the land of China have turned into deadly rules - the morgue in the funeral parlor, the corpse fishing boat in Canghe, and the funeral night in the mountain village. If one is violated, it will be erased on the spot! My name is Lin Yan, I have a master's degree in folklore and am a part-time undertaker at a funeral home. I rely on my ancestral folklore knowledge and my ultimate interpretation of the rules to survive by exploiting loopholes in the rules. But no one knows that my grandfather, an old corpse hunter, died on the third level of the Forbidden Realm ten years ago. The half-peach wood sign he left behind is guiding me to the source of all rules...