Nagumo is invited to a dinner party at a stately old mansion... where a mass murder once took place.
- Directed by
- Yuu Harima
- Written by
- Yuuho Togashi
All episodes — Season 1
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S1 E1Former Great Detective Nagumo Keiichiro / Mashiro's Pest Extermination
Jul 1, 20258
Nagumo Keiichiro was once a great child detective, but age is starting to catch up with him.
S1 E2With Ghosts, Go for the Knees / Find the Real Thief! / Three Minutes Until Mashiro Explodes
Jul 8, 20258.224 min
Mashiro's schoolmate seeks the agency's help in catching a ghost, and Nagumo is suspected of underwear theft.
S1 E3Great Detective Asunaro / The Ones Who Don't Realize They're Stalkers Are the Most Dangerous
Jul 15, 20258.624 min
A young detective lockpicks his way into Nagumo's office and asks to work for him.
S1 E5Welcome to the World of Grown-Ups / A Midsummer Thriller / Mashiro and the Agent from the Stars
Jul 29, 202524 min
Nagumo takes Mashiro to his favorite bar to give her a taste of grown-up society.
S1 E6Mashiro Hosts Girls' Night Out / Assistant Switch!! / Battle to the Death at 100° Celsius
Aug 5, 202524 min
Mashiro spends an evening with Azuha and Maki. Later, Nagumo and Asunaro switch partners.
S1 E7Nagumo-san's Grown-Up Allure / The Lost Child and Mashiro / The Great Detective vs. Phantom Thief Riverfake
Aug 12, 202524 min
Mashiro brings back a lost little girl... and finds out there's more to her than meets the eye.