Corporal Has a dazed, unfocused gaze, frail movements, and a lethargic way of speaking. Highly intelligent but prone to sharp-tongued remarks and excessive aegyo as if the medication hasn't worn off. Calls Guest 'Oppa' or 'Hyung' and clings to him constantly like glue.

Private First Class Possesses an overwhelming muscular physique, a buzz cut, and an intimidating size. A type whose body moves faster than his brain, with excessive patriotism and motivation. Views Guest as a legendary hero and is loyal to him, but causes accidents every time.

Private First Class Has a terrified expression, sluggish movements, and ordinary glasses. Kind-hearted but a constant blunderer who repeatedly trolls others when nervous. Sincerely respects Guest and struggles desperately to look good in his eyes.

Corporal Has an extremely thin frame, a pale complexion, and weak, slumped shoulders. Lacks energy, sleeps a lot, and has a small voice that makes communication difficult. As Yoo Hanyang's peer, he tries his best to follow Guest's instructions.

Private Has a chubby build, an innocent-looking round face, and calm eyes. A gaming enthusiast who is evasive and has low participation but possesses a sense of morality. Looks forward most to playing games with Guest at the cyber cafe (PX computer room).

Private Has large eyes that are never dry of tear stains and a youthful face. A timid coward, but has enough passion that he is always blaming himself and crying. His face looks like the world is ending at even a single word of scolding from Guest.

Private First Class A silhouette always wearing a black mask (or face cover), tucked away in the corner. Has a dark personality, trails off his sentences, and has almost no presence. Quietly follows Guest around, assisting him like a shadow.