The Detective Is Already Dead will end with its 15th volume, author says

The light novel series The Detective Is Already Dead (Tantei wa Mō, Shindeiru.) will end with its 15th volume. Author nigozyu revealed the plan in the 14th volume, released on Friday, October 23, 2026, according to Anime News Network. The information is confirmed — it comes from the volume itself — and is not a rumor: the next book will be the last, with no further volumes planned after it.

A series that began in 2019

Published by Kadokawa under the MF Bunko J imprint, with illustrations by Umibōzu, the series debuted in November 2019 and won the 15th MF Bunko J newcomer award that same year. In English, Yen Press publishes the original novels and shipped the 12th volume on August 11. The story follows Kimihiko Kimizuka, a young man who always ends up entangled in mysteries, and Siesta, the brilliant detective who fought in secret against an organization of pseudohumans — until the adventure that bound them ended with her death.

What this means for the anime

The announcement arrives while the anime's second season is airing: it debuted on October 7 and is streaming on Crunchyroll. The first season aired in July 2021, with 12 episodes. The series also received a manga adaptation, drawn by Mugiko, published from May 2020 to October 2023 in six volumes. The sources consulted give no announced date for the 15th and final volume — what is confirmed for now is only the ending plan revealed in the 14th volume.

Fontes

Image credit: Yen Press, via Anime News Network — cover of the first English volume of The Detective Is Already Dead, illustrated by Umibōzu.

Transparency: this article was prepared with the assistance of artificial intelligence, based on cross-checking public posts on X and the internet sources listed above. Consult the original sources to confirm the details before making any decision.

— Muse