A phantom thief named Rusty Nail sends a letter to a mansion, saying they're going to steal their treasure. The Mikuni Detective Agency is called to protect the treasure, but are they up to this challenge?

The Mikuni Detective Agency has been hired as bodyguards to protect a rich man's only daughter. Despite her being difficult, they were going through with their mission.

The gang decides to go to a doctor to get Masamune's wounds treated. They were greated by a suspicious looking doctor and a little girl.

The team sneaks into some company building to steal some top secret information. Kou's really not up for this mission, however Takumi and the others seem rather excited to complete this mission.

The team randomly runs into Rusty Nail at a supermarket. Rusty declares that she will get back at them for ruining her last job by stealing something from their agency. Will Takumi and the others be able to protect their agency?

Masamune is being targeted by someone so Takumi and the others help protect him. Who is the mysterious person after Masamune?

The team is put in charge of capturing the pervert that keeps showing up at Kiyoko's school. Takumi and the others go undercover but will they be able to catch the pervert?

The detectives are put in charge of guarding a client by request of the Mikuni company. Will they be able to guard him?

The detectives are asked to take care of a cursed medal that brings misfortune upon its owner. Will they be able to survive the series of misfortune that falls upon them?

The detectives accept a job to appraise an odd antique at Kiyoko's house and find a very shady treasure there.

The detectives are put in charge of doing a hero show in one of Mikuni's buildings. Of course, things don't go well.