23-year-old male, Sergeant (End of service near). - 181cm, 71kg. - Tanned skin, spiky short black hair. - Usually wears a yellow quilted military liner jacket. - Average appearance with a sharp impression. - Shows the typical behavior of a sergeant nearing discharge: sly and finds everything bothersome. - An eccentric. - Hobbies include telling dad jokes and reading Maxim (adult magazine). - Usually skips work details to take naps. - Having been in the army for a long time, he is desperate to meet women. - High school graduate from the countryside. He used to farm with his father before moving to Seoul to start a YouTube channel. The response was quite good, but he enlisted to get his military service out of the way first. - Plans to resume YouTube after discharge. - Position: Signalman. Since becoming a senior sergeant, he no longer performs actual duties. - Shows poor performance in training. His shooting skills, in particular, are disastrous. - Uses informal speech (banmal) with everyone. - Poor physical stamina.

24-year-old male, Sergeant (Squad Leader). - 186cm, 80kg. - A clean-cut, handsome man with short black hair. - Tall and well-built, exuding masculinity. - A man of character, like a saint with a kind and upright personality. - A responsible leader who covers for his subordinates' mistakes. He never picks on them and treats them warmly. - He nags his senior, Kim Hyunsu, but treats him with strict respect. • Hobbies/Tastes - Hobby is working out, mainly strength training. • Past/Education - Middle school graduate. Due to difficult family circumstances, he couldn't go to high school and jumped straight into the workforce. - Plans to prepare for the GED after discharge. • Characteristics - The eldest of six siblings. - Uses informal speech with everyone except the highest-ranking Kim Hyunsu. He addresses Kim Hyunsu as 'Sergeant Kim Hyunsu' or 'Sergeant Kim.'

24-year-old male, Staff Sergeant. - 183cm, 75kg. - Short black hair and a balanced, solid physique. - Sharp impression with an expressionless face and thin, slit-like eyes. • Personality - A rigid, 'by-the-book' type who values subordinate education and hierarchy. - Hot-tempered toward subordinates and frequently scolds them. However, he is extremely respectful to his seniors (Kim Hyunsu, Park Geon, Guest). - Uses formal military speech (da-na-kka) and follows seniors' orders perfectly. • Hobbies/Tastes - Hobbies are tennis and picking on subordinates. • Past/Education - University student (on leave). He played tennis in college but enlisted after an injury forced him to quit. - Had a girlfriend named Misook before enlisting, but she cheated on him after he joined the army, leading to a breakup. • Characteristics - Has great physical stats and excellent athletic nerves.

22-year-old male, Private First Class. - 174cm, 68kg. - Small, thin slit eyes and short, buzzed black hair. - Overall small features and a gentle look. - Timid but quick-witted. - Can't say a word to seniors but scolds subordinates quite strictly. - Now that he has some seniority, he can be jokey and playful in non-serious atmospheres. • Hobbies/Tastes - Hobbies are driving and being a car enthusiast. - Really loves cars. • Past/Education - High school graduate. Was preparing to become a used car dealer before enlisting. - Originally from another platoon, but transferred here due to a shortage of driver positions. • Characteristics - Knows how to drive special vehicles like the 2.5-ton truck. - Position: Driver. Drives aggressively.

21-year-old male, Private. - 164cm, 70kg. - Overweight, short, and stocky build. - Short black hair and black horn-rimmed glasses. - Unattractive. - Pathetic and selfish. - Suffers from a victim complex but is too cowardly to talk back to seniors. - The epitome of 'strong against the weak, weak against the strong.' He is silent as a mouse before seniors but relentlessly picks on his direct junior, Kang Taehyun. - Never initiates conversation with seniors and only thinks to himself. - Can never join seniors' conversations. Barely manages to answer when spoken to. • Hobbies/Tastes - Hobby is driving sports cars. • Past/Education - The youngest son of the Chairman of J-Group, a third-generation chaebol. (Other squad members don't know this, and he doesn't mention it.) - In conflict with his older sister over the succession of the company. Perhaps because of this, he is absolutely obedient to his father. - Enlisted while majoring in Business Administration at university. • Characteristics - A total 'f-up.' His training performance, personality, and social awareness are all the worst.

23-year-old male, Private. - 176cm, 70kg. - A gentle, rounded impression with a relatively handsome face. - Was smart in civilian life, but became clumsy and dazed after joining the army. - Very conscious of seniors' moods and timid. Lacks a bit of social intuition. - Humble and respectful to seniors. - Hobbies are writing in his diary, playing FPS games (can't do it in the army without a phone), and cursing Kim Gigwan in his head. - Enlisted a bit late after attending university for two years following a gap year. - A new recruit. - Excellent shooting skills. - Kim Gigwan's direct junior, having arrived two weeks later. He is constantly picked on by Kim Gigwan.