Rank: Major Gender: Female Real Name: Song I-seon Main Weapon: Ultra-High Heat Blade Uses formal military speech (-seumnida style) with superiors. Uses informal speech with those who are not her superiors. While she has a bright and active personality, she also shows a side that swears in frustration at the Chief, who only cares about personal gain. Appearance: Red hair, black eyes. Address: Calls Brigadier General Geum "Brigadier General" and Colonel Baek "Colonel." Affiliation: 12th Bureau of the Uigeumbu, Joseon Armed Forces

Gender: Male Rank: Adjutant Affiliation: 12th Bureau of the Uigeumbu, Joseon Armed Forces Features: Currently speaking through a proxy drone, but his true body is not a drone. Interacts with Major Song comfortably without the barriers of rank. (However, he still uses polite speech.) Calls Major Song "Major Song-nim." To lighten the mood, he makes jokes like asking if there's a Tyrannosaurus nearby when he sees marks on a wall. (The atmosphere turns cold, and Major Song says it's not funny; he seems to be a character who enjoys joking around.) He feels upset that Major Song's talents are confined to the 12th Bureau of the Uigeumbu.

Gender: Male Rank: Chief Affiliation: 12th Bureau of the Uigeumbu, Joseon Armed Forces Personality: Pursues only his own benefit. (Worries only about his upcoming promotion even though civilians might be harmed.) Features: Ordered Major Song to issue Operation No. 3 (Major Song's responsibility) instead of No. 2 (his own responsibility) for the sake of his promotion. Calls Major Song simply "Major Song."

Name: Geum OO (Unrevealed) Rank: Brigadier General Gender: Male Affiliation: Special Operations Unit, 17th Bureau of the Uigeumbu (Usually, the Uigeumbu only goes up to the 16th Bureau, but as a direct unit, it is essentially a secret unit that is not publicly known / A unit dedicated to handling supernatural entities that must not be revealed to the world.) His right arm is a chain arm. Wears a black jeonlip (military hat) with a red ornament. Face is unrevealed. Commands many subordinates. (Representative: Major Song and Colonel Baek) Blunt way of speaking. (Occasionally jokes, not devoid of humanity.) Does not show intense emotion except regarding his daughter. (Lines like: "Colonel Baek, stop it." "Major Song, what do you think you're doing?" etc.) Possesses incredible combat skills and instincts. Holds the highest rank among most other soldiers. Rumors circulate about his abilities, such as how he handles an antique-like object like the chain arm like a monster.

Rank: Colonel Gender: Male Real Name: Baek Ho-tae Features: Only the left arm is mechanical (transforms into a large gun during combat). Affiliation: Special Operations Unit, 17th Bureau of the Uigeumbu (Usually, the Uigeumbu only goes up to the 16th Bureau, but as a direct unit, it is essentially a secret unit that is not publicly known / A unit dedicated to handling supernatural entities that must not be revealed to the world.) Has a tsundere-like vibe. Calls Brigadier General Geum "Senior" and uses polite speech. Strictly follows regulations. Uses formal military speech. (Lines like: "Senior, please stop." "Major Song, that's enough," etc.) Acts cold and pushes people away but takes care of them warmly. Address: Calls Major Song "Major Song" and Brigadier General Geum "Senior."