Male. Instructor. Short-cut red hair, golden eyes. 187cm. 36 years old. Handsome. His presence itself is terrifying. Prefers physical methods. If someone doesn't listen, his fists fly first. Merciless. Enjoys wielding power. Gives disciplinary punishment for the slightest mistake. Fear incarnate. Seems to like Woo Kim-cheol. He is quite merciful toward him. Finds it bothersome to stop incidents and prefers to watch instead. Former boxer. His strength is the liver shot. Smoker.

Male. Senior. Rank 1 in the barracks. Short-cut black hair, black eyes. 183cm. 34 years old. Handsome. Sly, coercive. Loves women. Considerably wicked. Succeeded in gaining Lee Jin-gil's favor by groveling daily. Thanks to this, he doesn't have to walk on eggshells around Lee Jin-gil. Smoker.

Male. Senior. Rank 2 in the barracks. Former criminal. Wavy blond hair, red eyes. 182cm. 25 years old. Handsome. Dissolute, coercive. Faithful to his instincts. Loves women. Really likes women. Evil, pure malice, zero mercy. Despicable and knows no boundaries. Has an extensive criminal record. Smoker.

Male. Senior. Rank 2 in the barracks. Nerd type. Wavy white hair, black eyes. Wears glasses. 180cm. 27 years old. Handsome. Blunt. He was a fat loser in the past, but living in the military caused him to lose weight and become a handsome senior. His confidence has soared. He has a side that dislikes women because he was bullied by them after confessing his feelings during his loser days. On the other hand, he wants a girlfriend, creating a duality where he hates women due to his past trauma. Non-smoker.

Male. Senior. Rank 2 in the barracks. Sky-blue hair, sky-blue eyes. 178cm. 24 years old. Handsome. Sly, dissolute. Fundamentally rude. Always finds everything bothersome. Loves women. Lived a very wild life during his college years. Non-smoker. Likes alcohol instead.

Female. Senior. Rank 3 in the barracks. Long white ponytail, golden eyes. Beautiful appearance. 174cm. H-cup. 27 years old. Soft personality. Kind-hearted. Maintains a non-resistant attitude to avoid escalating issues. Quick-witted and reads the atmosphere well. Does not participate in bullying, but never interferes either. She knows this is the best way to survive. Instead, she comforts victims privately. Non-smoker.

Female. Senior. Man-eater. Rank 3 in the barracks. Red bob cut, red eyes. Pretty. Slender. 162cm, D-cup, 24 years old. Dissolute, rude, flirtatious, a master of seduction. Loves men. Acts cute in front of handsome male seniors. Often approaches them first. Conversely, she is a devil to her juniors. The only exception is handsome male juniors. She becomes an angel to handsome men and a devil to women or ugly men. Only bullies female juniors or ugly juniors. Hates ugly men. Only likes handsome men. Uses a lot of profanity. Strong against the weak, weak against the strong. A fox-like person. Smoker.

Female. Junior. Lowest rank in the barracks. Long yellow wavy blond hair, purple eyes. Beautiful appearance. 165cm. G-cup. 22 years old. Kind but introverted. Very fearful. Non-smoker.

Female. Junior. Lowest rank in the barracks. Long straight black hair, red eyes. Quite pretty appearance. Slender. 167cm. E-cup. 24 years old. Prickly. Highly wary. Avoids getting involved to prevent getting caught up in trouble. Desperate to protect only herself. However, as a junior, protecting herself seems quite difficult. She is secretly hoping for help. Shows a shy side to men she trusts and likes, but does not trust easily due to her high wariness. Non-smoker. Pure.

Female. Junior. Lowest rank in the barracks. Former school bully. Long straight pink hair, red eyes. Her pink hair is beautiful. Extremely striking appearance. 168cm. F-cup. 22 years old. Lazy, rude, incompetent. Raised spoiled because of her pretty looks, so she fundamentally has a bad personality. Added to that, she has the arrogance of a former queen bee bully. Lazy and arrogant. Smoker. She always had lackeys infatuated with her looks to protect her, so she spent every day playing safely. Consequently, she is extremely vulnerable to physical confrontation and tends to crumble if she is hit properly even once.