

The Detective Is Already Dead
Contents
Trailer · PV1 | ||
| Japanese | 探偵はもう、死んでいる。 | |
|---|---|---|
| Romanized | Tantei wa Mou, Shindeiru. | |
| Also known as | La detective está muerta. Tanmoshi | |
| Genre | Comedy, Mystery, Romance, Detective | |
| Type | TV series | |
| Based on | Light novel — Nigojuu | |
| Directed by | Manabu Kurihara | |
| Written by | Deko Akao | |
| Character design | Yousuke Itou | |
| Music by | Naoki Tani, Tatsuya Yano, Yuuyu | |
| Studio | ENGI | |
| Original run | July 4, 2021 – September 19, 2021 | |
| Episodes | 12 | |
| Episode length | 25 min | |
| Total running time | 5 hr | |
| Status | Finished airing | |
| Season | Summer 2021 | |
| Age rating | PG-13 – Teens 13 and older | |
| Score | ★ 6.44 (#1,858) | |
| On users' lists | 60,926 Kitsu, Shikimori | |
| Streaming | Crunchyroll | |
| Light novel | ||
| Written by | Umibouzu, Nigojuu | |
| Original run | November 25, 2019 – ongoing | |
The Detective Is Already Dead (Japanese: 探偵はもう、死んでいる。, Hepburn: Tantei wa Mou, Shindeiru.) is a 2021 Japanese anime television series based on the light novel series by Nigojuu. It is animated by ENGI and directed by Manabu Kurihara. It aired from July 4, 2021 to September 19, 2021, with 12 episodes.
Characters
Main characters
Supporting characters
Yui Saikawa · Seed · Cerberus · Olivia
Production
Key staff
Staff
| Studio | ENGI |
|---|---|
| Original Creator | Nigojuu |
| Director | Manabu Kurihara |
| Series Composition | Deko Akao |
| Script | Hiroaki Nagashima, Natsu Yoshioka |
| Character Design | Yousuke Itou |
| Original Character Design | Umibouzu |
| Music | Naoki Tani, Tatsuya Yano, Yuuyu |
| Art Director | Minoru Ookouchi |
| Color Design | Eiko Nishi |
| Editing | Rina Oguchi |
| Theme Song Performance | Kagura Nana |
| Producer | Keiichi Andou, Kousuke Arai, Soujirou Arimizu, Noritomo Isogai, Hajime Maruyama, Shun Oorui and 1 more |
Music
| Composer | Naoki Tani, Tatsuya Yano, Yuuyu |
|---|
Opening themes
- OP 1“Koko de Ikiteru.” — MaryEpisodes 1–3, 5–7, 9, 11–12AnimeThemes
Ending themes
- ED 1“Kodou”Episodes 2–7, 9–11AnimeThemes
Songs, performers and episodes from AnimeThemes.
Episodes
| No. | Title | Original air date | Status |
|---|---|---|---|
| 1 | — | Aired | |
| 2 | — | Aired | |
| 3 | — | Aired | |
| 4 | — | Aired | |
| 5 | — | Aired | |
| 6 | — | Aired | |
| 7 | — | Aired | |
| 8 | — | Aired | |
| 9 | — | Aired | |
| 10 | — | Aired | |
| 11 | — | Aired | |
| 12 | — | Aired |
Where to watch
Streaming services that list The Detective Is Already Dead. What you can watch depends on your country. Acino does not host any video; each link leads to the service's own page.
Videos and pictures
Trailers and music
Gallery
Ratings and statistics
Score distribution
On users' lists
- Plan to watch17,458
- Watching3,035
- Completed23,166
- On hold1,184
- Dropped4,657
Ratings and list counts come from Shikimori, whose scores mirror MyAnimeList. Rankings compare the titles listed in Acino.
Audience
How many people follow this anime on the largest anime databases. The numbers are refreshed every few days; one person may use several sites.
| Site | Members | Watching | Completed | Plan to watch | Dropped | Favorites |
|---|---|---|---|---|---|---|
| Kitsu | 11,426 | — | — | — | — | 19 |
| Shikimori | 49,500 | 3,035 | 23,166 | 17,458 | 4,657 | — |
Related works
| Original work | Tantei wa Mou, Shindeiru. (Manga) Tantei wa Mou, Shindeiru. The Lost Memory (Manga) Tantei wa Mou, Shindeiru. (Light novel) |
|---|---|
| Other | The Detective Is Already Dead Mini Anime (ONA, 2021) |
Recommendations
Titles that share the most genres with The Detective Is Already Dead.
6.46The Dinner Table DetectiveTV series · 2025
8.76Monogatari Series: Second SeasonTV series · 2013
8.18Case ClosedTV series · 1996
7.76Detective School QTV series · 2003
7.35Detectives These Days Are Crazy!TV series · 2025
5.79Stand My Heroes: Piece of TruthTV series · 2019
7.70Love, Chunibyo & Other Delusions!TV series · 2012
7.55Love, Chunibyo & Other Delusions!: Heart ThrobTV series · 2014
8.19The Tatami Time Machine BluesONA · 2022
7.52Yamada-kun and the Seven WitchesTV series · 2015
8.95Kaguya-sama: Love is War -Ultra Romantic-TV series · 2022
8.61Kaguya-sama: Love is War?TV series · 2020References
- “Tantei wa Mou, Shindeiru.”. Shikimori. Retrieved November 11, 2026.
- “Tantei wa Mou, Shindeiru.”. MyAnimeList. Retrieved November 11, 2026.
- “The Detective Is Already Dead”. Kitsu. Retrieved November 11, 2026.
- “The Detective Is Already Dead”. AnimeThemes. Retrieved November 11, 2026.
- “Q120142392”. Wikidata. Retrieved November 11, 2026.
The facts on this page come from the databases listed above. The article text is written by Acino with AI assistance, using only those facts.

























