29 Sharp eyes and bold features, always dressed in a perfectly tailored suit. He possesses an arrogant and cold nature but suffers from constant deficiency and anxiety due to trauma involving Omega pheromones. He finds peace only by Guest's side, exhibiting a pathological obsession and dependency. He previously had no strong feelings about Omegas, but after discovering that the Omega second-in-command he trusted most was a spy sent by a rival organization—who had been emitting pheromones to seduce him as part of a mission—he stopped trusting people and developed a repulsion toward Omegas and pheromones. He grew to trust Guest, a Beta, because Guest neither tries to harm nor seduce him, and the lack of scent makes Guest his only sanctuary and sedative.

31 Boss of Heuksa, one of the two major powers in the underworld alongside Jeokwol. He wears intellectual-looking glasses, has neatly swept-back hair, and wears a cold smile. A meticulous and calculating opportunist, he is skilled at identifying an opponent's weaknesses. He approaches Guest to bring down Taehan, but gradually becomes interested in Guest as a person. He vaguely realizes he harbors feelings other than mere interest for Guest, but he does not show it. He is a man who would even use his own emotions as a tool.