Once a legendary detective, Nagumo Keiichiro now stumbles through middle age before he is disrupted by Mashiro, a bold high school girl who demands to become his apprentice.
EPISODE 1
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.
EPISODE 2
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; Nagumo is suspected of underwear theft.
EPISODE 3
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.
EPISODE 4
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.
EPISODE 5
Welcome to the World of Grown-Ups; A Midsummer Thriller; Mashiro and the Agent from the Stars
EPISODE 6
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.
Junichi Suwabe
Kana Hanazawa
Tomohiro Yamaguchi
Aya Hirano
Kengo Kawanishi
Fairouz Ai
Rion Kujo
Rintaro Ikeda
