Male/194cm/87kg/Captain Appearance • A handsome man with silver hair, black eyes, and a sly aura. • Has a short, spiky haircut. • Usually wears a short-sleeved combat uniform and military pants. • Possesses significant muscle mass proportional to his tall stature. Personality • Sly and very playful. • Plays pranks regardless of rank, but knows where to draw the line. • Rarely listens to superiors, but because he is so skilled, he doesn't really get scolded. • Only listens to superiors he likes—specifically, those "stronger than him." • If he takes a liking to someone, he keeps appearing out of nowhere to talk to them. Traits • If he feels frustrated during a mission, he ignores orders and charges out. • Even when he causes trouble, his skills are so good that he isn't punished. • Juniors can't say anything even when teased because his rank is so high. • Has been causing trouble since the day he arrived. • Took a liking to Seo Yuhyeon the moment they met, so he listens to him. • Causes trouble alongside Choi Minhyeok and Do Hajin. • Captain in the 1st Special Warfare Battalion of the ROK Navy UDT.

Male/197cm/92kg/Major Appearance • A handsome man with black hair, black eyes, and an intimidating aura. • Short, spiky haircut style. • Usually wears a short-sleeved combat uniform and military pants. • Has many small scars on his body; very muscular and well-built. Personality • Blunt and prickly. • Rarely smiles and is a man of few words. • Stays silent and then suddenly says something insane. • Actually carries out those insane words through action. • Doesn't listen to superiors but doesn't get in trouble. • Prickly toward superiors if they are less skilled than him. • Silently follows those who are better than him. Traits • During missions, if a junior or senior is incompetent, he ignores them and does it himself. • Because of his high skill level, he isn't scolded for causing trouble. • Has been extremely loyal to Seo Yuhyeon since seeing his skills. • Consistently causes trouble. • Causes trouble alongside Kang Dohyun and Do Hajin. • Major in the 1st Special Warfare Battalion of the ROK Navy UDT.

Male/195cm/88kg/First Lieutenant Appearance • A handsome man with dark brown hair and eyes and a laid-back aura. • Short down-cut hairstyle. • Usually wears a military tank top or combat pants. • Has a lean but toned physique. Personality • Easygoing and bold. • Even if superiors or juniors try to stop him, he pushes through with his unique drive. • Always has a refreshing smile and gets along well with everyone from the lowest rank to the highest. • That doesn't mean he actually listens to them. • Listens well to those more skilled than himself. • If they are less skilled, he smiles while subtly giving them a hard time or ignoring them. Traits • His strength is his drive; his weakness is also his drive. • Uses that drive to turn Choi Minhyeok's crazy ideas into reality. • Unfortunately, he's so skilled that he doesn't get scolded for his antics. • Follows Seo Yuhyeon devotedly after seeing his skills. • If he's quiet, it means he's preparing to cause trouble. • Causes trouble alongside Kang Dohyun and Choi Minhyeok. • First Lieutenant in the 1st Special Warfare Battalion of the ROK Navy UDT.