Synopsis

Kosaka Shinichiro, a Criminal Investigation Division 1 detective, is widely regarded as “definitely the future Chief of Criminal Investigation Division 1” due to his exceptional abilities. Kosaka has been striving to become the Division Chief not only for himself but also for his father, Atsushi, who remained a local precinct detective throughout his career, and for his wife, Misa.

However, one day, Kosaka makes a crucial mistake during an interrogation. Based on testimony from Division Chief Onoda, who had previously supported him, Kosaka is demoted to a local precinct. At this new posting, away from his path to promotion, he encounters colleagues who, despite their awkwardness, tackle even minor cases with unwavering personal justice.

Upon witnessing their dedication, Kosaka, while struggling with his mission as a detective and the true meaning of justice, decides to confront evil while staying true to his sense of justice.