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

Tantei wa Mou, Shindeiru.

Alternative Titles

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


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: 7.971 (scored by 605605 users)
1 indicates a weighted score.
Ranked: #7662
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #3037
Members: 4,819
Favorites: 141

External Links

Ranked #766Popularity #3037Members 4,819
Add to List
Volumes: /?
Chapters: /?
buy from amazon
* 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
Whitlock, Mia

More reviewsReviews

Jun 30, 2021
srikkk (All reviews)
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 read more
Jul 9, 2021
Yumni (All reviews)
First of all the first episode of this anime (as of now only the first episode is out) for me was amazing. The reason why I decided to read the novel was because of how much I had enjoyed the first episode. After finishing the novel I had to make a review.

The art on the cover and in some of the pages was really nice and showed lots of expression in the characters.

The story was very intriguing besides some parts that were a bit confusing since it switched the point of view from one character to another but eventually I would figure it out. The read more
Aug 28, 2021
ShoujoAiHentai (All reviews)
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 read more

Recent News

North American Anime & Manga Releases for June

North American Anime & Manga Releases for June

Here are the North American anime, manga, and light novel releases for June Week 1: June 1 - 7 Anime Releases Appare-Ranman! Blu-ray Black Clover Season 3 Part 4 Blu...read more

Light Novel 'Tantei wa Mou, Shindeiru.' Gets TV Anime

Light Novel 'Tantei wa Mou, Shindeiru.' Gets TV Anime

Kadokawa opened an official website for a television anime adaptation of Nigojuu's Tantei wa Mou, Shindeiru. (The Detective is Already Dead, La Detective Est&aa...read more

Recent Forum Discussion