Seasons
12.
Nagumo Dons the Haori / Producing Nagumo Detective Agency / Nagumo Detective Agency Shuts Down
September 16, 2025
Can the gang make enough money to pay off Nagumo's overdue rent and save Nagumo Detective Agency?
A client asks Nagumo to save his wife from a psychic who seems to have brainwashed his village.
Nagumo receives a case of someone taking indecent photos of women at a water park.
Mashiro loses her smartphone, and Asunaro recounts how he and Maki became partners.
8.
Nagumo's Cyber Case File / The Phantom Thief's Method / A Detective Assistant's Day Off
August 19, 2025
The gang tries to sniff out a cyber criminal who's brainwashing people through online videos.
7.
Nagumo-san's Grown-Up Allure / The Lost Child and Mashiro / The Great Detective vs. Phantom Thief Riverfake
August 12, 2025
Mashiro brings back a lost little girl... and finds out there's more to her than meets the eye.
6.
Mashiro Hosts Girls' Night Out / Assistant Switch!! / Battle to the Death at 100° Celsius
August 05, 2025
Mashiro spends an evening with Azuha and Maki. Later, Nagumo and Asunaro switch partners.
5.
Welcome to the World of Grown-Ups / A Midsummer Thriller / Mashiro and the Agent from the Stars
July 29, 2025
Nagumo takes Mashiro to his favorite bar to give her a taste of grown-up society.
Nagumo is invited to a dinner party at a stately old mansion... where a mass murder once took place.
3.
Great Detective Asunaro / The Ones Who Don't Realize They're Stalkers Are the Most Dangerous
July 15, 2025
A young detective lockpicks his way into Nagumo's office and asks to work for him.
Official Trailer [Subtitled]
YouTube Trailer
Description
Once a legendary detective, Nagumo Keiichiro now stumbles through middle age baffled by smartphones and modern life. His quiet decline gets disrupted when Mashiro, a bold high school girl, bursts into his office demanding to become his apprentice. Though he’s rusty and set in his ways, her relentless enthusiasm drags him back into detective work. Now the gap-bridging detective duo is on the case!
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Genres
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Cast諏訪部順一花澤香菜河西健吾杉田智和
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Channel
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Premiere DateJuly 01, 2025
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Rating7.333 (12)
