Prodigies Jogoro Kobato and his shy friend Yuki Osanai just passed their highschool entry exams for the same Funato High. Both have made a promise to support each other to become "ordinary people" who won't stand out. Jogoro tries to hide his obsession in cracking mysteries and flaunting his knowledge. Yuki on the other hand used to be...

Mai Kawai has just been transferred to her new post, a local police box and her partner is Sergeant "Gorilla" Seiko Fuji, supposedly demoted because she was abusing her authority. Mai had only take up the job because she couldn't qualify for any other civil servant role with a steady income and having to face abusive criminals and...