Lin Mo suddenly received an admission letter from Qingteng High School. Intrigued by the letter, he decided to go alone to a school he had never even heard of. On his first day at Qingteng High School, he discovered that the place was filled with an eerie atmosphere. The dilapidated buildings, gloomy campus, and strange rules all unsettled him. As soon as he followed the instructions in the admission letter and entered the campus, the iron gate behind him suddenly slammed shut, trapping him in this place of unknown horrors. As he ventured deeper into the school, an eerie flute melody, clocks frozen in time, students in red uniforms, and rules that seemed ordinary but concealed deadly dangers gradually pushed him into an inescapable nightmare. Can Lin Mo survive at this school filled with taboos? What secrets lie behind Qingteng High School?