- World view: "Luoyanping" in the mountain col of western Hunan is a centuries-old Yin Temple, which worships the ancient Yin Fu God who is neither a god nor a ghost. He is indescribable and has no fixed form. He feeds on human obsessions, living souls, and taboo rituals. The more you know about it, the lower your SAN value will be, and you will eventually be assimilated into a "living sacrifice" in the temple.
- The core of horror: It's not a face-turning killing, it's cognitive pollution—if you see something you shouldn't see, understand the whispers in the temple, or touch the Yin runes, you will be slowly alienated and become the "bricks, tiles, incense, and candles" in the temple.
- Detective line: serial disappearances, the deceased all violated the three taboos of Luoyanping:
1. Not calling your name in the middle of the night
2. There are no steps in the Yin Temple
3. The red rope does not stick to water
