Tantei wa Mou, Shindeiru.
The Detective Is Already Dead
What would you like to edit?

Tantei wa Mou, Shindeiru.

Alternative Titles

Synonyms: La Detective Está Muerta.
Japanese: 探偵はもう、死んでいる。
English: The Detective Is Already Dead
More titles


Volumes: Unknown
Chapters: Unknown
Status: Publishing
Published: Nov 25, 2019 to ?
Genres: Comedy Comedy, Drama Drama, Mystery Mystery, Romance Romance
Serialization: None
Authors: Umibouzu (Art), Nigojuu (Story)


Score: 7.731 (scored by 10561,056 users)
1 indicates a weighted score.
Ranked: #15582
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #2803
Members: 6,842
Favorites: 184


Ranked #1558Popularity #2803Members 6,842
Add to List
Volumes: /?
Chapters: /?
* Your list is public by default.


Kimihiko Kimizuka is a crisis-magnet. From getting caught up in a crime scene to accidentally witnessing a drug deal, trouble seems to find him around every corner. So it is no surprise when his rather mundane flight suddenly enters a state of emergency with a dire need of a detective onboard. Unfortunately, his attempt at avoiding trouble is foiled by a beautiful girl with silver hair who goes by the codename Siesta. Declaring herself a detective, she unceremoniously drags Kimizuka into the case as her assistant.

That incident spelled the beginning of an adventure around the globe that went beyond his wildest imagination. Putting their lives on the line, the two took down criminal organizations, prevented disasters, and saved thousands. But the curtain closed to their epic journey with Siesta's untimely death three years later.

Resolving to live an ordinary high school life this time, Kimizuka spends a year maintaining a low profile. However, as fate would have it, a girl with an uncanny resemblance to Siesta comes crashing into his life, threatening to throw his peaceful days into disarray.

[Written by MAL Rewrite]


Tantei wa Mou, Shindeiru. placed fourth in the Kono Light Novel ga Sugoi! ranking in the best light novel category in 2021. It has been published in English as The Detective Is Already Dead by Yen Press under the Yen On imprint since June 29, 2021.

Related Manga


Kase, Fuubi


Jun 30, 2021
Preliminary (20/? eps)
Tantei wa Mou, Shindeiru (also known as The Detective is Already Dead, or its shorthand, Tanmoshi) is one of those experiences that you just cannot describe. It's a shame that this absolute gem of a light novel has flown under the radar for so long, but no longer! An official localization recently released and anime adaptation to air in a couple of days are present as well.

(As of writing, this is a summative review based on my experience of reading all five volumes currently available in all languages.)

Story - 9/10

Looking at the plot or the synopsis, one may come into this LN expecting some ...
Aug 28, 2021
Preliminary (6/? eps)
Reminiscing on the past is something we all do. We hold nostalgia for the past. But when something is over, it’s over. When it’s done its’ done, and when someone is dead, they’re dead. You may think fondly on your memories with them. Even try to reconnect in some way. Some visit graves, some pray to gods. But at the end of it all. What’s gone is gone. In this novel, we follow Kimizuka Kimihiko. As the assistant to the World Famous Detective, they travelled the world for three years, and lived unforgettable memories together. However, by the time the novel starts, the detective is ...
Oct 1, 2021
Mixed Feelings
Preliminary (1/? eps)
This story for me is acutally pretty good if it wasn't for the anime adaptation.

I bought the First volume right when it was announced that it will get a anime adaptation. Though super hyped about the adaptation i was just plainly disappointed. even so much that for me, it destroy the experience and feeling that I had when reading through the light novel so that it leaves a bad after taste when thinking about the butchered scenes from the anime adaptiation.

The story and art is actually pretty good. From the covers and the art shown in the LN,
the Characters though fulfill to many ...


Recent News

North American Anime & Manga Releases for February

North American Anime & Manga Releases for February

Here are the North American anime, manga, and light novel releases for February. Week 1: February 7 - 13 Anime Releases Horimiya Complete Season Blu-ray & DVD Co...read more

 'Kono Light Novel ga Sugoi!' 2023 Rankings Revealed

'Kono Light Novel ga Sugoi!' 2023 Rankings Revealed

The Kono Light Novel ga Sugoi! (This Light Novel is Amazing!) guidebook has revealed its annual light novel rankings for 2023. This list includes the ten most popula...read more

Recent Forum Discussion

Poll: Tantei wa Mou, Shindeiru. Volume 4 Discussion
Syureria - Jun 13, 2021
4 repliesby Syureria »»
Feb 4, 12:07 AM
Poll: Tantei wa Mou, Shindeiru. Volume 5 Discussion
Syureria - Jun 13, 2021
29 repliesby FakeSpicyApple »»
Feb 2, 2:15 AM
Poll: Tantei wa Mou, Shindeiru. Volume 3 Discussion
Syureria - Jun 13, 2021
1 repliesby FakeSpicyApple »»
Jan 28, 1:16 AM
Poll: Tantei wa Mou, Shindeiru. Volume 2 Discussion
Syureria - Jun 6, 2021
2 repliesby Syureria »»
Jan 25, 2:48 AM
Anime adaptation
Stark700 - Jan 19, 2021
11 repliesby FakeSpicyApple »»
Jan 25, 1:31 AM

It’s time to ditch the text file.
Keep track of your anime easily by creating your own list.
Sign Up Login