Playback is currently unavailable for S1 E1 · Former Great Detective Nagumo Keiichiro / Mashiro's Pest Extermination. Episode details remain available below.
Detectives These Days Are Crazy!
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!
- Cast:
- Junichi Suwabe, Kana Hanazawa, Kengo Kawanishi, Tomokazu Sugita
- Language:
- Japanese
- Country:
- Japan
- Network:
- AT-X
Episode guide
Seasons
Season 1
Episodes
E01
Episode 1
★ 8.0Former Great Detective Nagumo Keiichiro / Mashiro's Pest Extermination
2025-07-01Nagumo Keiichiro was once a great child detective, but age is starting to catch up with him.
Current episode
E02
Episode 2
★ 8.2With Ghosts, Go for the Knees / Find the Real Thief! / Three Minutes Until Mashiro Explodes
2025-07-08 · 24mMashiro's schoolmate seeks the agency's help in catching a ghost, and Nagumo is suspected of underwear theft.
Watch progress · Not tracked
E03
Episode 3
★ 8.6Great Detective Asunaro / The Ones Who Don't Realize They're Stalkers Are the Most Dangerous
2025-07-15 · 24mA young detective lockpicks his way into Nagumo's office and asks to work for him.
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E04
Episode 4
★ 7.3Murder at the Mansion of Screams / Maki-chan and the Generation Gap
2025-07-22 · 24mNagumo is invited to a dinner party at a stately old mansion... where a mass murder once took place.
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E05
Episode 5
★ 7.3Welcome to the World of Grown-Ups / A Midsummer Thriller / Mashiro and the Agent from the Stars
2025-07-29 · 24mNagumo takes Mashiro to his favorite bar to give her a taste of grown-up society.
Watch progress · Not tracked
E06
Episode 6
★ 7.7Mashiro Hosts Girls' Night Out / Assistant Switch!! / Battle to the Death at 100° Celsius
2025-08-05 · 24mMashiro spends an evening with Azuha and Maki. Later, Nagumo and Asunaro switch partners.
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E07
Episode 7
★ 7.7Nagumo-san's Grown-Up Allure / The Lost Child and Mashiro / The Great Detective vs. Phantom Thief Riverfake
2025-08-12 · 24mMashiro brings back a lost little girl... and finds out there's more to her than meets the eye.
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E08
Episode 8
★ 7.3Nagumo's Cyber Case File / The Phantom Thief's Method / A Detective Assistant's Day Off
2025-08-19 · 24mThe gang tries to sniff out a cyber criminal who's brainwashing people through online videos.
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E09
Episode 9
★ 7.7Take Good Care of Your Smartphone / Maki-chan and Asunaro
2025-08-26 · 24mMashiro loses her smartphone, and Asunaro recounts how he and Maki became partners.
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E10
Episode 10
★ 7.3Catch the Sneak Photographer! / The Bullet Bride
2025-09-02 · 24mNagumo receives a case of someone taking indecent photos of women at a water park.
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E11
Episode 11
★ 7.0Mashiro and the Psychic of Love
2025-09-09 · 24mA client asks Nagumo to save his wife from a psychic who seems to have brainwashed his village.
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E12
Episode 12
★ 7.3Nagumo Dons the Haori / Producing Nagumo Detective Agency / Nagumo Detective Agency Shuts Down
2025-09-16 · 24mCan the gang make enough money to pay off Nagumo's overdue rent and save Nagumo Detective Agency?
Watch progress · Not trackedCast
Junichi Suwabe
Keiichiro Nagumo (voice)
Kana Hanazawa
Mashiro (voice)
Kengo Kawanishi
Taro Nezu (voice)
Tomokazu Sugita
Cheerful Old Man / Nipple-Tasting Man / Cross Chest Hair Man / Man Who Likes Ropes (voice)
