Detectives These Days Are Crazy!
| Company type | Manga series |
|---|---|
| Industry | Manga, Anime |
| Founded | April 27, 2016 |
| Founder | Masakuni Igarashi |
| Headquarters | Japan |
| Products | Manga, Anime adaptation |
| Parent | ASCII Media Works (manga publisher) |
is a Japanese manga created by Masakuni Igarashi. It started its run in the seinen magazine Dengeki Maoh, published by ASCII Media Works, in April 2016. An anime adaptation produced by Liden Films debuted in July 2025.
Plot
Approximately two decades ago, Keiichiro Nagumo was recognized as a brilliant high school detective in Japan. Now at 35 years old, he faces deteriorating health, disillusionment, and the challenge of managing a struggling private investigation firm burdened with financial woes. His outlook shifts when Mashiro Nakanishi, a high school student, approaches him seeking to become his apprentice. Although initially reluctant, Nagumo eventually accepts her after she proves helpful in solving a case.
Characters
- A once-renowned detective now operating a faltering agency, grappling with advances in technology and changes in societal norms. Despite his current difficulties, his legendary past achievements continue to motivate emerging detectives.
- A spirited high school apprentice under Nagumo’s tutelage, notable for relying on physical strength and mysteriously carrying various tools concealed within her uniform.
- A stray cat residing at the detective agency after being abandoned by a client.
- A former minor Yakuza member who joins Nagumo’s team following an incident where Mashiro dismantles his gang’s headquarters.
- A former rival apprentice and admirer of Nagumo’s earlier career, skilled in lockpicking and security systems, who pursues independent detective work and has a considerable female fanbase.
- Yuu’s assistant who endures his eccentric behavior and harbors insecurities about her small stature and age.
- A college dropout who styles himself as a "Star Agent," creating espionage gadgets and custom pharmaceuticals from an office located beneath Nagumo’s agency.
- The daughter of Detective Mimasaka, aspiring to become the "Phantom Thief Beaver," frequently pilfering items from Nagumo’s office to demonstrate her abilities.
- Nagumo’s old classmate now employed as a civil servant at the TMPD, who struggles with modern technology yet claims to understand both Mashiro’s true identity and Nagumo’s decline.
- A large black man appearing in Mashiro’s flashbacks as her combat instructor.
Manga
Masakuni Igarashi both writes and illustrates Detectives These Days Are Crazy!, which began serialization on April 27, 2016, in the seinen manga magazine Dengeki Maoh by ASCII Media Works. As of August 2024, the series has been collected into fifteen volumes. The English-language rights are held by One Peace Books.
Anime
An anime TV adaptation was revealed on August 23, 2024. Produced by Liden Films, it is directed by Rion Kujo with scripts managed by Rintarō Ikeda. Character design and chief animation direction are handled by Isoroku Koga, while Tomoki Kikuya composes the soundtrack. The show premiered on July 1, 2025, airing on AT-X alongside other broadcasters. The opening theme is "Suffer" performed by Taiiku Okazaki, with the ending theme "GORI☆GORI Feez e-Girl!!" sung by Kana Hanazawa (as Mashiro) and Tomokazu Sugita (as "Jolly Old Men").Crunchyroll holds international streaming rights, whereas Medialink manages distribution across Southeast Asia and Oceania (excluding Australia and New Zealand), streaming via Ani-One Asia's YouTube channel.
Episodes
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Reception
As of August 2024, the series had achieved circulation figures exceeding 900,000 copies, demonstrating significant consumer interest.
See also
- Senryu Girl, another manga work created by the same author
- Tune In to the Midnight Heart, an additional manga series from the same creator