The Detective Is Already Dead (Japanese: 探偵はもう、死んでいる。, Hepburn: Tantei wa Mō, Shinde Iru.)

According to him, he was born with a condition that naturally attracts him to troublesome situations, such as being forced to join a flash mob while taking a leisurely walk, accidentally stumbling across an underworld transaction between drug dealers, and being at the site of crime scenes often enough to sometimes be considered a suspect.

After being constantly pestered, Kimihiko agrees to be Siesta's sidekick and for three years, they worked together, finding and solving an innumerable number of cases.

Now in his last year of senior high, Kimihiko is once again confronted by the ghosts of the past as he tries to solve new cases that fall into his lap.

The idea of The Detective Is Already Dead started from a random sentence the author, Nigojū, thought of one day.

Media Factory has published twelve volumes since November 2019 under their MF Bunko J imprint.

[10] Its spin-off Natsunagi Nagisa wa Mada, Joshikōsei de Itai.

[33] Another spin-off Saikawa Yui wa demo, aidoru de iru.

-The Lost Memory-) was serialized in Monthly Comic Alive from January 27, 2021 to September 27, 2022.

[39][54] Its spin-off Toaru Meitantei to Joshū no Love Com-deki Nichijō (とある名探偵と助手のラブコメ的日常), illustrated by Moyashi Itame, has been collected in two volumes so far.

[60][61] Mary × jon-Yakitory performed the opening theme song, "Koko de Ikiteru."

"I Am Alive Right Here"), while Kagura Nana performed the ending theme song, "Kodō" (鼓動) (lit.

[65][66][67] It was announced that the VTubers Shirakami Fubuki and Natsuiro Matsuri of Hololive will have a cameo in the third episode of the anime.

[70] On October 2, 2021, Funimation announced that the series would receive an English dub, which premiered the following day.