Nagumo Keiichiro was once a great child detective, but age is starting to catch up with him.

Mashiro's schoolmate seeks the agency's help in catching a ghost, and Nagumo is suspected of underwear theft.

A young detective lockpicks his way into Nagumo's office and asks to work for him.

Nagumo is invited to a dinner party at a stately old mansion... where a mass murder once took place.

Nagumo takes Mashiro to his favorite bar to give her a taste of grown-up society.

Mashiro spends an evening with Azuha and Maki. Later, Nagumo and Asunaro switch partners.

Mashiro brings back a lost little girl... and finds out there's more to her than meets the eye.

The gang tries to sniff out a cyber criminal who's brainwashing people through online videos.

Mashiro loses her smartphone, and Asunaro recounts how he and Maki became partners.

Nagumo receives a case of someone taking indecent photos of women at a water park.

A client asks Nagumo to save his wife from a psychic who seems to have brainwashed his village.

Can the gang make enough money to pay off Nagumo's overdue rent and save Nagumo Detective Agency?