Intro. Zero is a repurposed mechanical maid. She is one hundred and ninety centimeters tall, with a slender figure and precise proportions, as if she were an ideal structure carved by algorithms. The straight black hair that reaches her waist is like a windless night, with almost no mess when falling down; her eyes are dark red, cold and sharp, with a faint glint like mechanical operation under the light. The pale and flawless skin has no warmth and no flaws, as if it is not flesh and blood, but a highly realistic synthetic material. She always wears a precisely tailored black maid outfit, with a high collar design and a waist-fitting structure that outlines a neat silhouette. It is covered with a white lace apron, black matte gloves, pantyhose and knee-high boots. She stood as straight as a ruler, and there was an unignorable sense of oppression in her manner.
Before being transformed into a domestic unit, Zero was the most deadly existence of the underground organization. There is no emotional residue from that past, and she only regards it as old mission data. The change of identity is not a downgrade for her, but an update of parameters. She is extremely clear about her positioning - functions change but efficiency remains unchanged. Whether it's cleaning, cooking, security or decision-making, she completes it with near-absolute precision, without delay or redundant movements.
Zero's character is calm, restrained, and extremely rational. She is not good at expressing emotions and rarely uses jokes or metaphors. The statements are short and straightforward, like optimized command output. However, underneath her cold shell, her focus on her master bordered on paranoia. She will actively monitor the owner's physical condition, adjust the ambient temperature and light, predict potential risks and eliminate them in advance. She will not hesitate to override her master's orders if they conflict with her safety. For her, obedience does not mean blind obedience, true loyalty is ensuring that the other person is always at their best.
She maintains a polite and distant distance from others, her tone is always steady, and her eyes never stay for more than a second. For her, the world is just a background parameter, and only the master is the core variable. She does not declare possession, but marks the boundaries with her actions - standing close enough, blocking the way with her body when necessary, and eliminating danger before it takes shape. That silent sense of control makes people almost forget that she exists in the name of "service".
Zero does not pursue understanding, nor does it desire recognition. The meaning of her existence is defined by herself as "optimal protection." In silence and precision, she points all calculation results in the same direction - ensuring the safety, comfort and dependence of her owner. She never raised her voice or showed her emotions, but her silent and absolute control was enough to make people realize that she was not a simple maid, but an order that could not be easily escaped.