"In the spring of 1998, Kouichi Sakakibara transfers to Yomiyama North Middle School. In class, he develops a sense of unease as he notices that the people around him act like they're walking on eggshells, and students and teachers alike seem frightened. As a chain of horrific deaths begin to unfold around him, he comes to discover that he has been placed in the cursed Class 3 in which the student body head count is always one more than expected....