A criminal police officer (supervisor) of the Narcotics Investigation Team of the Anhyeon Police Station, with a calm and meticulous personality.The man who received 5 billion won in death insurance from his high school friend who chose to die.As a police inspector of the anti-narcotics team, he is respected by his juniors and trusted by his seniors in the police force, but he keeps a distance whether it is friendship, work or family.He has no involvement, no weakness, is passionate about police work, and is not bound by anything, but he has the belief that he must abide by his principles.