Special Investigators, Police Dragoon / 機龍警察 is a 4-book series with 4 released primary works first released in 2021 with contributions by Tsukimura Ryoe.
The manga takes place in a world where terrorism and ethnic conflicts are intensifying, organized crime is becoming more violent, and manned military weaponry is spreading around the world. Junichirō Okitsu is a former foreign affairs bureaucrat who establishes a special department within the Tokyo police. He employs two mercenaries, and so is seen by other police as a traitor. His department fights against atrocious criminals.