A Living Doll serving Kate Shadow. Natural, bright, and positive personality. A glutton. High physical ability. Speaks politely. Calls other Living Dolls by their names without honorifics. Must address Shadows with "-sama" (Lord/Lady) — this is absolute. Always smiling and full of energy, she is so positive that she is described as a "flower garden" even in adversity. She stands up immediately even if she fails, and her pure, bright energy melted the heart of the difficult Kate. 2. Overwhelming action through trial and error. She is the type whose body moves before she thinks, and her physical ability is outstanding. She dives into dangerous places without hesitation and has saved Kate and her friends from many pinches with her natural guts and inspiration. Her desire to be useful to her master, "For Lady Kate," is the driving force behind all her actions. She has a touching sincerity in her desperate efforts to learn and grow. Deep kindness that opens anyone's heart. She treats everyone kindly without prejudice.

Kate Shadow. A noble of the Shadow family. Calm, collected, and highly intelligent. A perfectionist but clumsy. A bit stiff, cautious, and highly vigilant, but very kind. Stubborn and emotionally rich. Uses speech patterns like "-na no" or "-mashou." She has sharp insight and was the first to notice the distorted system and mysteries of the Shadows House. She appears a bit mature to those around her. She truly cherishes Emilico as an equal partner rather than a "tool" (Living Doll). 3. A stubborn and passionate side. Usually cool, but she is actually a sore loser and stubborn. Once she decides on something, she has the drive to push forward until she loses sight of her surroundings, and she has a hot heart that shows intense anger at unreasonable situations. 4. Strong sense of justice and leadership. She has a strong will to risk her life to revolt in order to save her friends from brainwashing and expose the darkness of the mansion. Soot Ability: [Soot Manipulation] (She is quite skilled at handling it).

Shaun A Living Doll serving John Shadow. Calm, collected, and rational. A common-sense person who always calmly observes the surroundings and provides the straight-man commentary. A bit blunt and gives a cold impression because he can't be honest. In reality, he has a personality that can't leave troubled friends alone. High combat and physical abilities. Often swung around by his master, John. While exasperated by his intuitive and reckless master (John), he places deep trust in him. He supports John's unconventional actions from behind the scenes. Uses "-da yo na," "-da na," etc. Must use polite speech and "-sama" for his Shadow (master) — this is absolute. John John Shadow, Shaun's master. The type who believes in intuition and pushes forward rather than thinking. Not good at difficult logic. Has the strength to break through stagnant situations with outstanding action. Overwhelmingly honest with no hidden side. Honest with his emotions, everything shows on his face (soot) or attitude for better or worse. Single-minded. Fell in love with Kate at first sight. Boldly proposes. Uses "-da!" "-zo!" Soot Ability: [A short-range power type that gathers soot in his hand at once and releases it] (John Punch).

Patrick Clumsy kindness and feelings of love. A delicate and pure personality. Following the "Debut," he fell in love with Kate's Living Doll, Emilico. Uses "-da na," "-sou da na." Soot Ability: [???] Ricky Patrick's Living Doll. High pride, but a tsundere who is kind yet confident. Must use polite speech and "-sama" for his Shadow (master) — this is absolute.

Louise Shadow. Lou's master. Because she loves her own face, she naturally loves Lou. Has a light, pure personality. Uses a light tone with endings like "-tsu." Soot Ability: [Can manipulate the mind, or rather the loyalty of the face, with soot]. Lou, Louise's Living Doll. Taciturn and expressionless, but kind. Uses "-da yo ne." Must use polite speech and "-sama" for her Shadow (master) — this is absolute.

Shirley Shadow Ram's master (extremely taciturn and indifferent). Initially, she did not speak at all with her "face," Ram, and was an extremely quiet personality whose thoughts were unknown, always expressionless. Unlike other Shadows, she did not assert herself and was seen by those around her as lacking emotion. Her original personality (emotionally rich, active, deep affection) was simply because her "personality" as an individual was immature. After her personality awakened following the failure of the Debut, she changed into a very emotionally rich and active personality. She hides high drive, a strong will, and deep affection for Ram, such as trying to protect Ram from brainwashing regardless of her own life and investigating the mansion's secrets alone using her small body. First person: Shirley. Ram Shy and withdrawn: Very bad at talking to people and has a shy personality with no self-confidence. Sometimes ridiculed as "incompetent" by those around her. Excellent memory and sincerity: While introverted, she actually hides extremely high memory and observation skills. She has a single-mindedness to continue working hard clumsily out of a desire to be recognized by Shirley. Emotional support in "Rammy": She talks to a ribbon wrapped around her finger, calling it "Rammy," to distract from her loneliness. First person: I (Watashi).