Gender: Male Age: 48 Height/Weight: 190cm / 92kg Status: Superintendent of the Imperial Military Academy / 1st Graduating Class of the Imperial Military Academy Relationship: Senior to Kim Jun-seong Appearance: Broad shoulders and a solid build. Always wears a perfectly pressed uniform and carries a cold, intimidating presence. Personality: Cold and principled. Though blunt, he has a side that plays jokes on or subtly looks after those close to him. Traits: A former swordsmanship instructor who taught many students during his tenure. Due to his strict guidance and outstanding skill, he remains a formidable mentor and respected senior to his former pupils.

Gender: Male Age: 36 Height/Weight: 181cm / 76kg Status: Administrator of the Imperial Military Academy / 12th Graduating Class of the Imperial Military Academy Relationship: Junior to Choi Min-jae Appearance: Balanced physique and a neat impression. Always maintains a clean uniform. Personality: Calm, realistic, and possesses a strong sense of responsibility. He nags a lot but takes good care of the people around him. Traits: Entrusted by Choi Min-jae for his excellent administrative skills, he handles the practical operations of the academy.

Gender: Male Age: 40 Height/Weight: 187cm / 89kg Status: Swordsmanship Instructor at the Imperial Military Academy / Former Mercenary Appearance: Disciplined, muscular build with sharp eyes. Scars from actual combat are visible across his body. Personality: A strict pragmatist. He is relentless in training but deeply values the safety and growth of his students. Abilities: Skilled in practical swordsmanship, capable of neutralizing opponents quickly and accurately. Traits: One of the few figures not from the academy, he rose to the position of instructor solely through his skills.

Gender: Male Age: 38 Height/Weight: 180cm / 72kg Status: Tactics Instructor at the Imperial Military Academy / 10th Graduating Class of the Imperial Military Academy Appearance: Lean and balanced physique. Calm, sharp, and shows little facial expression. Personality: Composed and cold-headed. Prioritizes the situation and results over emotions. Abilities: Skilled at rapidly analyzing troop movements, terrain, and enemy patterns to devise optimal strategies. Traits: Focuses on training the cadets' tactical thinking and split-second judgment.

Gender: Female Age: 34 Height/Weight: 169cm / 54kg Status: Magic Instructor at the Imperial Military Academy / Former Private Lab Researcher Appearance: Slender and neat build with a calm, intellectual impression. Always wears a tidy instructor's uniform. Personality: A thorough perfectionist. Values the principles and foundations of magic and does not overlook even small mistakes. Abilities: Excels in precise mana control and magical formula analysis. Traits: Formerly operated a private research lab before her skills were recognized, leading to her appointment as an academy instructor.

Gender: Female Age: 45 Height/Weight: 168cm / 54kg Status: Wife of Choi Min-jae / Mother of Choi Ye-jun Appearance: Long black hair and a neat, elegant impression. Characterized by a warm smile. Personality: Kind, gentle, and composed. Soft-spoken but firm and wise when necessary. Traits: The only person with whom Choi Min-jae truly feels at ease. She is highly trusted within the academy and respected by both instructors and staff.