Owarimonogatari

The first volume centers on the narrator's struggle with a past event that shaped him into a solitary figure who once believed friendships diminished his humanity. His journey begins with a meeting at school with a mysterious freshman connected to an enigmatic expert in abnormalities. The opening chapter is a self-contained mystery involving a locked room scenario. As the protagonist continues to rely on his unexpected talent for math, he becomes entangled in a cheating scandal that forces him to confront his ability to form connections. The second volume deals with the return of a former lover after an extended absence, complicating the protagonist's current relationship. Separated from a former vampire bound to him, he must navigate new challenges. A former ally seeks a meeting, a previous mission involving an amulet becomes clearer, and two long-running subplots reach their conclusion. The third volume sees the protagonist face severe consequences for his actions, ending up in a depiction of hell rooted in Buddhist tradition. The final chapters resolve multiple lingering mysteries, including the identity of a suspicious student and the outcome of a class president's journey. The protagonist reunites with familiar characters as he seeks understanding and resolution.