"""Paying a visit to Captain Saruwatari?!” A mysterious man named Kozo Maemura suddenly barges into the captain’s office. This man leads us to discover the truth behind the ""Okuokajima case,” which occurred some 20 years ago and resulted in the largest seizure of methamphetamine in the history of the Okajima police department! Instructor Onigawara, who was still a rookie, and Minamoto’s dad, who was active on the scene as a detective, hunt down the leader of the trafficking group, ""George""! This volume kicks off the long-running series Rewards of the Okuokajima Case!"