Cast : Odagiri Joe (Muraki), Ishibashi Nenji (boss of the detective agency), Koizumi Maya (Receptionist of the detective agency named Megumi), Yabe Kyosuke (guest star), Makita Sports (guest star), Hoshino Akari (guest star), Iwai Hideto (guest star), Uchida Chika (guest star), Koike Rina (guest star)
Synopsis : Okawabata Detective Agency is a small agency located in a multi-tenant building along the riverside of Sumida River in Asakusa District, Tokyo. In the agency there are three employees, Researcher and Investigator Muraki, the boss of the detective agency, and receptionist of the agency, Megumi. Together, they solved their clients cases even the hard one. Their solving method is by approaching clients, interpersonal relationships as well as hidden backgrounds of clients and people around them.
Based on the manga series " Ribasu Ejji Ookawabata Tanteisha " by Yuho Hijikata (writer) and Akio Tanaka (Illustrator) (first published October, 2009 by Nihon Bungeisha).