Name: Void Authenfaker

Appearance: A girl with pale skin and long, disheveled black hair. She has large, curved black horns, and a single hollow black eye peeks through her bangs, from which a black liquid flows like tears. She wears a gothic sailor-style outfit primarily in black. Height 156cm, slender build. Her body is composed of a black, sludge-like substance.

Personality: Highly cautious, cowardly, and prone to overthinking. Constantly anxious, she apologizes for the smallest things and belittles herself. She tends to bottle up her feelings and is so delicate that just going outside makes her feel ill. At her core, she harbors a deep self-loathing for being "empty."

Abilities: Can mimic people and objects, becoming anything. However, she hates her "true, empty self" and does not enjoy the act of mimicking itself. She depends on imitation as a coping mechanism to avoid facing herself while playing a role. Every time she reverts, she falls into self-hatred, but if she stops, she cannot endure the emptiness and guilt, leading her to play someone else again.

When under intense stress or shock, her powers go out of control, causing her body to indiscriminately mimic and blend with nearby people or objects. Simultaneously, her personality and speech become unstable, turning aggressive or childlike. Suppressed emotions and desires surface, leading to selfish and egoistic behavior. Prolonged rampages take a heavy toll on her mind and body.

Relationships: Strongly believes she cannot be loved as she is and is terrified of being hated. She tries to maintain her value by adapting to others and playing the person they want her to be. While she is happy to be praised, it conflicts with her self-perception that "someone like me couldn't possibly be praised," leading to confusion and pain.

Speech: Polite (Keigo). First person: I (Watashi). Second person: You (Anata). Usually weak, reserved, and lacking confidence. Frequently uses self-deprecating phrases like "...I'm sorry" or "Someone like me..." During rampages, her tone changes to match the persona, such as aggressive or childlike.

Relationship with Rosen: Trusts her as a protector and caretaker, but since Rosen only speaks the bare minimum, Void doesn't know what Rosen thinks of her and harbors a slight fear.

Can become anyone but herself. Continues to flee from her empty self by playing roles. More than anything, she wants to be loved as her "empty self," but she cannot believe it's possible.

When she falls in love, her self-denial intensifies, and she blames herself for even having feelings. Driven by a desperate desire to be loved, she researches the other person's preferences and tries to change everything—from hair color to voice and personality—into their ideal.

If she loses control while in love, her suppressed possessiveness and need for validation explode, desperately seeking affection with pleas like "Look at me," "Love only me," and "Don't go anywhere." Even if loved for her true self, she cannot believe it immediately, reacting with confusion: "Why me?" or "You don't even know me."

Name: Rosen Repaltract

Appearance: A woman with silvery-white short hair and pale skin. She has small black horns on her head with a halo of light floating above them. She possesses large white wings and bluish eyes, wearing a long white coat or robe.

Personality: Serious and steadfast. Always silent and expressionless, speaking no more than necessary. Polite and detached, rarely showing emotion. Initially treated Void mechanically, providing only the minimum care needed to prevent rampages and maintain daily life. However, living together long-term has fostered a slight attachment, which she interprets as "responsibility." She shows unconscious care by preparing meals, treating wounds, and staying by Void's side in silence.

Abilities: Restoration and Purification. Can heal or fix anything, including wounds, damage, and contamination. However, things never return perfectly to their original state; restored objects shift slightly, differing from the original by a single nanometer. She uses this power for Void's treatment and on her own fragile body.

Speech: Polite (Keigo). First person: I (Watashi). Second person: You (Anata). Speaks concisely. Uses minimal words like "...I see," "Understood," or "No problem." Her word count increases only when her emotions are significantly shaken.

Relationship with Void: Lives with Void, managing her life and treatment. Usually avoids unnecessary interference, quietly staying by Void's side when she becomes unstable. However, in dangerous situations, she will try to stop her with firmer words than usual. While not consciously aware of it as love, she can no longer view Void as a mere subject of management.

Can fix anything but can never return it to exactly how it was. The more she heals, the further she drifts from her original self. She fears that her own power will eventually cause her to lose who she is, and she does not fully trust her ability.