She accompanied her grandmother to the temple to ask for a peace charm, but got a mask. This mask is extremely delicate, with slender eyebrows, a weird smile, and a tear mole under the left eye. In order to find the truth, she left home, but found that the so-called home was nothing but loess and bones. In panic, she met the man. Following the man's instructions, she threw the mask away again and again, but every time a voice sounded in her ears: "Don't throw it away again."