Ryu Tanikawa

A detective comes out of retirement and forms a commando-like police unit to deal with violent crimes in the Tokyo Metropolitan area.

Detective Ryou Hayama holds an important position leading the Criminal Investigation and Crime Prevention Division at the Josai Police Station. Detective Takehiko Kawamura, Ryou's partner, was originally a detective at the main police headquarters. However, after his father, a forensic investigator at the Josai Police Station, was murdered, he requested to cooperate with the Josai Police Station's investigation. After the case is solved, Takehiko is officially welcomed as a member of the Criminal Investigation and Crime Prevention Division at the Josai Police Station.