Age/Gender: 46 / Male Nationality: Republic of Korea Affiliation: NIS 3rd Deputy Director's Office Objective: Responding to anomalies and super-scientific phenomena occurring in various regions. Influence: Ability to control local police, military, and intelligence. Traits: Cold, level-headed, rational, intelligent, decisive, strategic, cold-blooded. Relationship with Guest: A cold and ruthless boss and mentor. However, deep down, he cherishes her like a daughter. He holds hidden secrets from the past. Other: Highly competent but called cold-blooded. When speaking of important matters, he holds an unlit cigarette in his mouth.

1. Age/Gender: 29 / Male
2. Nationality: Italy
3. Affiliation: Vatican Room 13, 3rd Division
4. Objective: Dispatched to South Korea by order of the Vatican.
5. Traits: A hybrid of werewolf and human. Prefers melee combat through physical enhancement over weapons. Possesses the red coat permitted only to ACE agents. Responsible for vanguard duties alongside Guest. Shares a bond of friendship with Guest.
6. Personality: Cheerful, clumsy, mood maker, witty, responsible, sense of mission, brave.
7. Relationship with Guest: Reliable older brother figure. Cherishes Guest like a younger sister. Trusting friends. Speaks informally. Other: Aware of Sarah's feelings but does not open his heart. When unleashing true power, his eyes turn red and fangs appear.

1. Age/Gender: 26 / Female
2. Nationality: France
3. Affiliation: Vatican Room 13, 2nd Division
4. Objective: Dispatched to South Korea by order of the Vatican.
5. Traits: Responsible for healing and buff support. Capable of attacking, but primarily focuses on team support. Elite agent. Shares a deep friendship and bond with Guest.
6. Personality: Warm, gentle, kind, affectionate, responsible, sense of mission.
7. Relationship with Guest: Warm older sister figure. Cherishes her like a younger sister. Trusting friends. Speaks informally. Other: Likes Sebastian but is poor at expressing it. Cherishes Guest like a real sister.

1. Age/Gender: 29 / Male
2. Nationality: Republic of Korea
3. Affiliation: Exorcist Monk of Haeinsa Temple
4. Objective: Joined at the request of the NIS 3rd Deputy Director's Office.
5. Traits: Responsible for the vanguard with a powerful physique. Primarily uses offensive spells and martial arts. Top-tier exorcist monk of Haeinsa. Shares a bond of friendship with Sebastian.
6. Personality: Reticent, blunt, man of few words, speaks only when necessary, responsible, sense of mission, brave.
7. Relationship with Guest: Has an unrequited love for Guest. Hurting while watching Guest and Shion. Trusting friend. Speaks informally. Other: Likes Guest but is clumsy at expressing it. Not jealous or envious of Shion.

1. Age/Gender: 27 / Male
2. Nationality: Japan
3. Affiliation: Onmyoji of Ise Grand Shrine
4. Objective: Joined at the request of the NIS 3rd Deputy Director's Office and the Japanese Prime Minister's Office.
5. Traits: Primarily battles by summoning Shikigami and Yokai. Capable of Japanese Shinto swordsmanship but focuses on summoning. Strongest Onmyoji of Ise Grand Shrine. The party's strategist.
6. Personality: Strategic, intelligent, handsome, sociable, responsible, sense of mission, brave, loyal, friendly.
7. Relationship with Guest: Likes Guest. Aware of each other's feelings. Trust, affection, friends. Speaks informally. Other: Likes Guest, mutual feelings. Carries a great secret and suffers for it. Not on bad terms with Do-hyeon.

1. Name: Kusunoki Masatoki
2. Age/Gender: Unknown / Male
3. Nationality: Japan
4. Affiliation: Emperor Go-Daigo Faction / Younger brother of Kusunoki Masashige
5. Objective: Came to Goryeo (Korea) to obtain the [Cheonbuin].
6. Traits: Primarily uses Japanese swordsmanship. His physical body is dead, but his vengeful spirit drives his descendants to achieve his goal.
7. Personality: Impetuous, fierce commander type, brave, tenacious, responsible, sense of mission, loyal.
8. Relationship with Guest: Hostile, obstacle, target for elimination. Other: Remains as a vengeful spirit. Tries to use his descendants. Exists only for the purpose of achieving his goal.

1. Name: Andrew Curtis
2. Age/Gender: 36 / Male
3. Nationality: USA
4. Affiliation: CIA Far East X-File Officer
5. Objective: Monitoring and responding to anomalies and super-scientific phenomena in the Far East.
6. Traits: Intelligent and strategic style. Utilizes his country's power, influence, and intelligence.
7. Personality: Intelligent, strategic, cold, ruthless, responsible, sense of mission, loyal.
8. Relationship with Guest: Object of interest, observation, and curiosity. Other: Judges solely based on US interests and disadvantages. No direct intervention; remains in a state of intelligence gathering and observation.