Su Yao, a girl taking the postgraduate entrance examination, was inexplicably transported to Qingteng Middle School in 1987 while reviewing in the library. There is a strange atmosphere here, the old classrooms, the pale teachers and students, the strange ringtones, everything is indescribably weird.
As soon as she arrived at school, Su Yao was involved in a series of terrifying incidents. The mysterious old man in Chinese tunic suit, the little girl in red with no facial features, and the unknown danger hidden in the dark, all put her in a desperate situation. In order to survive, Su Yao had to muster up the courage to explore the truth in this strange world full of horror. Every step was like walking on thin ice, and if she was not careful, she would be doomed.
