Intense School Mystery 'Taiikukan no Satsujin' Manga Enters Climactic Final Arc

The manga adaptation of Yugo Aosaki’s acclaimed mystery novel, Taiikukan no Satsujin (The Murder in the Gymnasium), has officially commenced its final, decisive chapter. This announcement marks a significant milestone for the series, which has successfully translated Aosaki’s intricate narrative into a compelling visual format since its launch.

Manga artist Rin Natori began serializing the adaptation in Comic Alive+ in June 2024, immediately capturing the attention of dedicated mystery readers. The story plunges readers into a classic 'locked room' scenario centered at Kazegaoka High School.

The narrative revolves around the fatal stabbing of the broadcast club leader inside the institution's old gymnasium under seemingly impossible circumstances, presenting a crime that defies conventional logic. When initial suspicion wrongly falls upon a fellow student, she is compelled to seek assistance from an unconventional ally: Tenma Urazome, the school’s resident anime otaku who secretly possesses sharp skills as an amateur detective. This unique partnership effectively blends traditional Japanese detective fiction tropes with fresh, modern perspectives.

Aosaki’s original literary work, which began its run in December 2015, established itself as a cornerstone of the contemporary mystery genre. The author released the fourth installment of the novel series in July 2023. The success of this narrative universe extends beyond print; it also served as the foundation for the television anime adaptation Undead Murder Farce, which debuted in July 2023 and was streamed globally by Crunchyroll (excluding Asian territories).

The manga's physical publication journey through Kadokawa has also been notable. The first collected volume was released on March 28, 2025, and the second volume is scheduled for release on November 28, 2025. The timing of the final chapter’s debut aligns perfectly with this ongoing physical distribution strategy, promising a satisfying and rapid conclusion for the readership that has followed this intricate case. This final arc represents the culmination of Natori's adaptation and underscores the potent synergy within Japanese media, where hit novels seamlessly transition across multiple platforms to captivate worldwide audiences.