The story begins at a century-old school in Bashu, where a student named Ye Zilin accidentally discovers an extra school rule-Rule Number Twenty-Two-and finds that students who violate it meet extremely terrifying and mysterious deaths. Then, an old post on the school's online forum, a mysterious black cat in an abandoned classroom building, and a "Chronicle" left behind by an old priest half a century ago-as the truth draws nearer, terror and danger close in step by step... The closer we get to the truth, the more elusive it becomes. Ghosts, prehistoric humans, alien species-in reality, many things beyond our imagination truly exist right beside us. Let's reexamine our lives through Ye Zilin's legendary journey!