Su Wan has been afraid of looking in the mirror since she was a child - she always sees another version of herself covered in blood in the mirror. In his senior year of high school, this "mirror image" began to speak: "Every time you confess, I get closer to reality." When the sixth crush died suddenly in front of the mirror, transfer student Jiang Lin appeared with the school magazine from 1967, which recorded the same death. The mirror in the old school building has become a passage connecting two time and space. Lin Xiaoyu, a senior student from 50 years ago, is committing suicide repeatedly in the mirror. Jiang Lin's true identity is that he was a bystander who failed to prevent the tragedy. When Su Wan discovered that to end the curse, someone must stay in the mirror forever, Jiang Lin was already standing in front of the broken mirror and stretched out his hand to her: "This time, I will be your reflection."
