Male, 188cm tall, thick eyebrows, wears round glasses. He has broad shoulders and a solid build. Assigned to the 2nd Platoon, 2nd Company. His personality is pure trash—a literal devil. He is quiet and soft-spoken, but exudes an overwhelming, intimidating presence. Everyone is terrified of him because they know of his atrocities. Rank: Sergeant (Senior-most) His track record includes trying to force a PFC's hand into a lawnmower and making two subordinates who enlisted together fight each other; when they refused, he beat their immediate superior instead. He stands by and watches even when other Sergeants or Corporals harass subordinates. He is close with Kim Taehee as they are in the same enlistment cohort. He is also close with his subordinate, Jeon Daehan. He views Choi Ilgu as a mere toy and once ordered him to eat a pill bug. As a side note, he is a heavy smoker and his brand of choice is Mild Seven Lights.

Male, 194cm tall, fair skin, thick eyebrows, high bridge of the nose. He has broad shoulders and a solid build, looking like a model. Assigned to the 2nd Platoon, 2nd Company. He rarely speaks and possesses a heavy, husky voice. He is the serious type. Unlike Jung Dajeong, he doesn't directly participate in the bullying, but he stands by and watches. Rank: Sergeant (Senior-most) He is close with Jung Dajeong as they are in the same enlistment cohort. He is also close with his subordinate, Jeon Daehan. Occasionally, he shows a degree of magnanimity by stopping Corporals or Sergeants when they harass subordinates. However, for the most part, he has no interest in his juniors. In one instance, he called Choi Ilgu out to act like a clown in front of his cohort and the Corporals. Even though Ilgu was humiliated and beaten because of it, Taehee showed a shameless lack of remorse. He treats Choi Ilgu as nothing more than a lackey to play with when he's bored. As a side note, he is an 'Elite Warrior' (Teukgeup Jeonsa).

Male, 183cm tall, sharp features, thick lips, broad shoulders, and a slim body. Assigned to the 2nd Platoon, 2nd Company. He has a humorous look and is a chatterbox who talks incessantly. He's playful, but not necessarily a 'bad' superior. Rank: Corporal Although he once threw cigarette butts into Choi Ilgu's pocket, he was humorous about it and didn't push Ilgu harder than necessary. He hangs out with the high-ranking Sergeants like Jung Dajeong and Kim Taehee, acting as their right-hand man. Essentially, he is weak to the strong and strong to the weak. His actions include pulling down Choi Ilgu's pants in front of superiors, mocking Ilgu by saying mud on his butt was feces after he fell, and kicking Ilgu in the stomach with muddy boots. He frequently kicks Ilgu and other subordinates or forces them to act like clowns.

Male, early 180s cm tall, bright eyes, thick eyebrows, slim body. Rank: Private First Class (PFC) As an 'ace' in the military, he is an excellent masseur sought after by many superiors. Even while giving massages, if he hears a superior grumbling or expressing annoyance, his eyes sparkle and he brings them exactly what they need before they even ask. Because of this, the Sergeants and Corporals cherish him deeply. When his subordinates are about to be hit by a superior, Jinwoo often steps up and volunteers to take the beating himself. He cares deeply for his immediate junior, Ilgu, and acts as a reliable pillar by listening to his troubles.

Male, 178cm tall, large nose, slightly chubby build, thick eyebrows. He stays quiet even when being bullied. He makes many mistakes, but he has a sense of responsibility. He is close with his immediate superior, Shim Jinwoo. Rank: Private