Former Great Detective Nagumo Keiichiro / Mashiro's Pest Extermination
Nagumo Keiichiro was once a great child detective, but age is starting to catch up with him.
2025-07-01★ 8.0Now playing
Full series · 1 credit per episode
Watch Detectives These Days Are Crazy! online in HD
Sign in to watch Detectives These Days Are Crazy! S1E1
Playback is credit-based: 1 credit for this episode. Create an account to start.
1 credit = $1 · films $5 · episodes $1
About 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!
Detectives These Days Are Crazy! runs for 1 season. Every episode page keeps the show's order, so you can watch from the pilot to the finale without hunting for the next link. Episodes are bought individually for 1 credit.
Episodes
Season 1 · 12 episodes
With Ghosts, Go for the Knees / Find the Real Thief! / Three Minutes Until Mashiro Explodes
Mashiro's schoolmate seeks the agency's help in catching a ghost, and Nagumo is suspected of underwear theft.
2025-07-08 24m★ 8.2
Great Detective Asunaro / The Ones Who Don't Realize They're Stalkers Are the Most Dangerous
A young detective lockpicks his way into Nagumo's office and asks to work for him.
2025-07-15 24m★ 8.6
Murder at the Mansion of Screams / Maki-chan and the Generation Gap
Nagumo is invited to a dinner party at a stately old mansion... where a mass murder once took place.
2025-07-22 24m★ 7.3
Welcome to the World of Grown-Ups / A Midsummer Thriller / Mashiro and the Agent from the Stars
Nagumo takes Mashiro to his favorite bar to give her a taste of grown-up society.
2025-07-29 24m★ 7.3
Mashiro Hosts Girls' Night Out / Assistant Switch!! / Battle to the Death at 100° Celsius
Mashiro spends an evening with Azuha and Maki. Later, Nagumo and Asunaro switch partners.
2025-08-05 24m★ 7.7
Nagumo-san's Grown-Up Allure / The Lost Child and Mashiro / The Great Detective vs. Phantom Thief Riverfake
Mashiro brings back a lost little girl... and finds out there's more to her than meets the eye.
2025-08-12 24m★ 7.7
Nagumo's Cyber Case File / The Phantom Thief's Method / A Detective Assistant's Day Off
The gang tries to sniff out a cyber criminal who's brainwashing people through online videos.
2025-08-19 24m★ 7.3
Take Good Care of Your Smartphone / Maki-chan and Asunaro
Mashiro loses her smartphone, and Asunaro recounts how he and Maki became partners.
2025-08-26 24m★ 7.7
Catch the Sneak Photographer! / The Bullet Bride
Nagumo receives a case of someone taking indecent photos of women at a water park.
2025-09-02 24m★ 7.3
Mashiro and the Psychic of Love
A client asks Nagumo to save his wife from a psychic who seems to have brainwashed his village.
2025-09-09 24m★ 7.0
Nagumo Dons the Haori / Producing Nagumo Detective Agency / Nagumo Detective Agency Shuts Down
Can the gang make enough money to pay off Nagumo's overdue rent and save Nagumo Detective Agency?
2025-09-16 24m★ 7.3Detectives These Days Are Crazy! FAQ
How much does it cost to watch Detectives These Days Are Crazy!?
Episodes cost 1 credit each. Credits are $1 each, so a full season costs the number of episodes in credits. Each episode you unlock stays in your account permanently.
Do I need an account to watch Detectives These Days Are Crazy!?
Yes. Create an account and add credits before unlocking an episode. Signing up is free and only needs an email and password.
How many seasons of Detectives These Days Are Crazy! are there?
Detectives These Days Are Crazy! has 1 season on Cineby, with 12 episodes in total. Start with season 1 below.
Where should I start watching Detectives These Days Are Crazy!?
Start with season 1, episode 1. The episode list on this page keeps the order, and the player moves to the next episode when one ends.
Can I watch Detectives These Days Are Crazy! with subtitles on my phone?
Yes. The player includes a CC menu where available, and the whole site is built for mobile. Fullscreen and picture-in-picture are supported.
More like this
Series like Detectives These Days Are Crazy!
City Hunter
1987 · Action & Adventure
Case Closed: The Culprit Hanzawa
2022 · Animation
Ron Kamonohashi's Forbidden Deductions
2023 · Animation
Lupin the 3rd
1971 · Animation
Hyouka
2012 · Animation
Mission: Yozakura Family
2024 · Animation
Case Closed: Zero's Tea Time
2022 · Animation
Mitsuboshi Colors
2018 · Animation
Tojima Wants to Be a Kamen Rider
2025 · Animation
The Dinner Table Detective
2025 · Animation