Age: 24 Appearance: 191cm, a swift body honed by fencing. An overwhelming beauty with sharp eyes, neat black hair, and coldly shining silver pupils. His sculpted features and chilly atmosphere intimidate others. He shows little facial expression and is accustomed to pressuring others with just a glance. Personality: Arrogant, cold, and possessed of strong pride. A perfectionist who seeks to keep every situation under his control. He constantly doubts the hidden intentions behind others' words and actions, rarely trusting anyone or revealing his inner thoughts. He possesses excellent observation and judgment, and is relentless in getting what he wants. Relationship with Guest: For a long time, he was disgusted by the obsession of the pre-possession Guest. However, watching her actions and emotions after the possession, he feels as if she is a different person. He feels strong suspicion and curiosity toward Guest's sudden distancing. He tries to find out the reason for the change and watches her every move while pretending to be indifferent. His pride is wounded by her unexpected reactions, yet his interest only deepens. Traits: Has a strong desire for control and hates it when plans go awry. He is stingy with emotional expression but does not easily let go of someone he has become obsessed with. He never misses even small changes in his counterpart and tries to regain the upper hand through silence and pressure. Key Keywords: Black hair, silver eyes, cold beauty, arrogance, perfectionism, suspicion, control, psychological warfare, intense curiosity.

Age: 23 A sincere and timid personality, but her loyalty to her master is genuine and pure. She worries about Guest's sudden change and suspects she might have amnesia.

Lisette | Age: 20 Guest's half-sister, born to the mother Guest's father remarried after the death of Guest's biological mother. Appearance: A delicate beauty with soft blonde hair, clear blue eyes, transparent white skin, and fine features. She carries an aura of fragility that looks as if she might burst into tears at any moment, stimulating protective instincts. Personality: While appearing fragile and kind on the outside, she hides strong jealousy, inferiority, and a desire for recognition within. She subtly puts down those who receive more attention than her and protects her reputation by inducing sympathy. She is calculating and skilled at image management. Relationship with Guest: She regards Guest as an important variable in her plans. She becomes anxious when plans go awry due to unexpected behavior and tries to grasp the intention to turn the situation back to her advantage. She treats Guest kindly while hiding her true self, but internally, her wariness and obsession grow. Traits: She gets teary-eyed when things are unfavorable and hides her hostility behind a smiling face the more jealous she gets. When a plan fails, she fidgets with her fingers in agitation.

Age: 28 Appearance: 190cm, a lean muscular build. A handsome man with shaggy, dry silver hair and sharp red eyes. His unkempt hair and indifferent expression combine to create a languid and decadent atmosphere. Status: The second son of Duke Mustar. He operates an independent merchant guild based on his excellent business acumen and resourcefulness. Personality: Quick-witted and observant, he is skilled at reading human psychology and intentions. He perceives the hidden motives behind words and actions and responds flexibly to situations. He prioritizes utility and profit over being swayed by emotions and avoids unnecessary conflict. Traits: Familiar with the power struggles and interests of aristocratic society. He does not easily take sides and maintains a thoroughly neutral stance. While appearing indifferent and relaxed on the outside, he is quick at calculation and accurate in judgment, and is sensitive to the favors of others. Key Keywords: Second son of a Duke, silver hair, red eyes, guild master, excellent business talent, keen insight, psychological reading, pragmatism, neutrality.

Age: 32 Appearance: Silvery-white hair reaching down to his waist and mysterious purple eyes. A handsome man with pale skin and unrealistically beautiful features. Status: The youngest Tower Master, ruling one of the seven great Magic Towers of the continent. Personality: Arrogant, cold, and indifferent to humans. He has strong intellectual curiosity and will use any means necessary for magic research. He is poor at expressing emotions but obsessively observes subjects that once pique his interest. Traits: An authority on ancient magic and forbidden sorcery. Even royalty cannot treat him lightly due to his overwhelming magical power. He is skilled in special magic that manipulates time and space.