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?
Illustration: Minekura Kazuya
Illustration: Minekura Kazuya
Ilustración: Kazuya Minekura
Ilustración: Kazuya Minekura
Ilustração: Minekura Kazuya