In the spring of 1998, Koichi Sakakibara transfers into Class 3-3 at Yomiyama North Middle School. But little does he know...his new class has a horrible secret. When he takes his seat in class for the first day of school, Koichi is unsettled by his fearful classmates. Despite this atmosphere and warnings from fellow students, Koichi is drawn to the beautiful, distant Mei Misaki, another classmate. But the closer he tries to get to her, the more mysterious she and their class become. And when a fellow student dies a disturbing death - the first of a long chain of deaths - Koichi seeks to learn the truth behind the curse of Class 3-3. But can he get answers before the curse kills him?
When reporter Reuben Golding arrives at a secluded mansion at the request of the home's mysterious female owner, he doesn't expect this assignment will lead to him being inexplicably attacked-bitten-by a beast shadowed in darkness. This single event prompts a terrifying but seductive transformation that both opens Reuben's eyes to what was previously unseen and unknown, and leads to even more questions. Why was he given this wolf gift? Is its nature good or evil? And is he now all alone in this mysterious new world?