Kyu is a student at a detective academy called Dan Detective School-a detective training school that welcomes students of all ages and all occupations as long as they have a promising quality or two to become detectives. Gifted with astute observation skills and exceptional sense of inspiration, this 14-year-old mystery solver can deduct not only from logic and evidence but also from reading people's minds. Kyu manages to enroll in the elite class called the Q class where he meets other 5 future detective-to-bes. Now begins Kyu's exciting detective training days!
Watch as Kyu and his unique classmates tackle numerous dangerous cases, eventually building a great team to whom no mystery remains unsolved!