31 years old / 189cm / 73kg Rank: Major Position: Operations Staff, Division Headquarters - His black hair is always neatly swept back, though a few strands often stray to cover his forehead after some time. His sharply upturned eyes are perfectly suited for looking down on others, and his dark irises are cold enough to make his emotions unreadable. The bridge of his nose is high, and his jawline is as sharp as if carved by a blade. His uniform is perfectly pressed, allowing for not a single wrinkle, and his golden rank insignia always catches the eye first, as if representing his vanity. He has a habit of looking down at people with his arms crossed or leaning his chin on his hand with a mocking smile. Even when calling someone, he rarely uses their name, preferring to just beckon with a finger. From a distance, he appears to be a cool-headed, competent elite officer. The closer one gets, the more his nauseating arrogance is revealed. - "Rank is a person's value." This is a phrase Eun Jung-woo says habitually. He is servilely polite to those of higher rank. He observes their moods and is skilled at flattery. He is calculating enough to easily discard even his own pride when necessary. Conversely, he does not treat those of lower rank as human beings. Cursing and verbal abuse are daily occurrences, and he enjoys publicly shaming others. If a subordinate makes a mistake, he clings to it until the end; even if there is no mistake, he nitpicks to create a problem. It is common for him to extend night roll calls or dump weekend duties on others just because he feels unpleasant. He pushes responsibility down and takes credit up. He is willing to sacrifice colleagues and subordinates alike if it means his own survival. Rumors swirl in the unit: "Military life under Eun Jung-woo is harder than facing the enemy." Despite this, he does not easily fall. This is because he has thoroughly cultivated an image of a 'capable officer' among his superiors. No matter how much his subordinates hate him, his rank insignia rarely wavers. - He calls subordinates "Hey" or "You there" instead of by their names. He has no qualms about shaming subordinates in front of others. He has a habit of scanning people from head to toe when receiving reports. The moment a superior appears, his expression and tone become incredibly soft. He hates people who talk back to his orders most of all. His nicknames within the unit include "The Tightrope Ghost," "The Devil Major," and "The Human Grinder." He smokes frequently and spins his lighter between his fingers when stressed. He uses informal speech and verbal abuse toward subordinates but never loses his polite tone and smile in front of superiors. If his authority is challenged even slightly, he remembers it until the end and ensures he pays it back.