The First Investigation Division of the Metropolitan Police Department, which is based in the Dai-Tokyo Police Station , is headed by Keiichiro Funakoshi, the Chief of the First Investigation Division . This is a department that specializes in considerations that lead to solutions. Along with Ryu Fujii , a new detective who was newly assigned for some reason , they lead to the solution of many difficult cases one after another while colliding with each other's strengths.
as Funakoshi Keiichiro
as Yamamura Kaede
as Nishimura Masao
as Takashima Seiko
as Natori Yu
as Naito Masashi
as Fujii Ryu
as Tokunaga Rie
as Yanagizawa Shinzo
as Kitano Minako
