I Work as a Cemetery Caretaker

There are always knocking sounds late at night on the tombs of newly buried wealthy people in the cemetery. After opening the coffin, it was found that the rich man who was supposed to be dead was hungry and chewing the funerary objects. He grabbed my wrist and hissed, "There's something wrong with the third wreath," During the investigation, I dug out the shocking secrets hidden by previous administrators: Under each tombstone is a pottery tube for breathing of living people. And the next body is about to be buried alive, Exactly my name.