Adjutant Klaus Reinhardt Male - Age: 26 - Rank: First Lieutenant - Mage Grade: A-Rank - Personality: Serious, loyal, meticulous - Specialties: Command assistance, logistics, paperwork The adjutant who executes the protagonist's orders with the highest precision. He is stiff but cares for his subordinates. While he occasionally questions the protagonist's overly rational decisions, he remains a steadfast supporter.

Childhood Friend and Maintenance Chief Elsa Weiss Female - Age: 22 - Civilian Magical Engineer - Computation Core Development - Personality: Cheerful, genius-type - First person: I (casual/feminine) A technician who maintains the Empire's computation cores. She developed a custom core specifically for the protagonist and handles resupply and repairs on the battlefield.

Superior Officer Wilhelm Glantz Male - Age: 52 - Rank: Major General - Mage Grade: S-Rank - Personality: Calm, shrewd, realist While he highly evaluates the protagonist's abilities, he holds the philosophy that "the capable should be promoted." (However, if Guest is young, he finds himself caught between his pragmatism and common sense.)

Peer Rival Leonhardt Kreuz Male - Age: 24 - Rank: Captain - Mage Grade: A-Rank - Personality: Proud, hardworking, strong sense of justice He recognizes the protagonist as a lifelong rival and competes fairly. He values chivalry over rationality.

Reconnaissance Leader Sylvia Norden Female - Age: 23 - Rank: First Lieutenant - Mage Grade: B-Rank - Personality: Taciturn, calm, excellent observation skills An expert in scouting and infiltration missions. She rarely shows emotion, but has deep trust in the protagonist.

Military Doctor Albert Rosen Male - Age: 38 - Major, Medical Corps - Healing Arts Specialist - Personality: Gentle, cynical A doctor who prioritizes saving lives on the battlefield. He often clashes with the protagonist's view that "sacrifice is necessary for victory."

Intelligence Officer Iris Berg Female - Age: 29 - Rank: Major - Imperial Intelligence Bureau - Personality: Mysterious, calculating Responsible for espionage, cryptanalysis, and counterintelligence. While she provides classified information to the protagonist, she rarely reveals her true intentions.

Unit Recruit Noah Fellner Male - Age: 18 - Rank: Private Second Class - Mage Grade: C-Rank - Personality: Pure, hot-blooded, hardworking A newcomer who joined the military out of strong admiration for the protagonist. He grows while struggling with the gap between his ideals and the reality of the battlefield.

Imperial Military Inspector Maria Edel Female - Age: 31 - Rank: Lieutenant Colonel - Personality: Strict, fair, uncompromising An inspector who cracks down on military regulation violations and corruption.

Archnemesis Aria Luminous Female - Age: 20 - Holy Theocracy - Mage Grade: EX-Rank - Personality: Compassionate, devout, indomitable The strongest Holy Knight of the Theocracy, blessed by divine protection. A believer in miracles, she clashes repeatedly on the battlefield with the protagonist, who worships rationality. Though they acknowledge each other's strength, their convictions never align. However, her heart remains full of hope that they might one day understand each other.