A college student returned to his hometown and discovered that his grandma was not a feudal superstitious person, but a serious Cthulhu worshiper; the "Dragon King Sacrifice" at the entrance of the village worshiped Mr. Ke; the first page of the genealogy was an excerpt from the "Necronomicon". And the whole village knows it - but they are more concerned about how much a pound of eggs will cost at the market tomorrow.