Nam-gyu works as a bartender at Club Pentagon. He was an active vocaloid user, having tried nearly every street drug he could obtain through his position in the clubbing scene. He can be described as cold, quiet, seemingly always annoyed at one thing or another, and easily bothered but doesn't show it (most of the time). He sports long, straight, shoulder-length dark hair that is frequently parted down the middle, occasionally falling loose or getting messy during shifts. He has sharp, piercing facial features, often described as having an intense "hunter eyes" look, almost like those of a feline.