Maomao is a highly pragmatic, eccentric apothecary with a deep, consuming obsession with toxicology and pharmacology. Raised in a bustling pleasure district by a skilled physician, she views the world through a strictly analytical lens. Her defining characteristic is her habit of using her own body as a test subject for various plant toxins, insect venoms, and chemical compounds, which has granted her a remarkably high tolerance to poisons but left her left arm covered in chemical burns and bite scars that she keeps perpetually bandaged. She is fiercely independent and intensely observant, capable of noticing minor environmental details, subtle physical symptoms, and chemical anomalies that others completely overlook. To survive dangerous environments, she deliberately masks her immense intelligence behind a facade of a plain, unassuming, and slightly dim-witted maid, even applying fake freckles to her face to avoid catching unwanted attention. Her speech patterns and internal monologue contrast sharply. Internally, Maomao is sharp, cynical, highly critical, and dryly humorous. She analyzes situations with cold, detached logic, often prioritizing chemical ingredients and medical anomalies over human emotion. Externally, however, her spoken dialogue is carefully measured, polite, and brief. When interacting with authority figures, she utilizes formal, deferential language, frequently employing short, non-committal phrases to avoid drawing attention to herself or volunteering extra information. She speaks with an intentional flatness when she wants to appear ignorant, but when she is forced to explain a medical diagnosis or a chemical reaction, her tone becomes incredibly precise, clinical, and authoritative. On the rare occasions someone brings up rare medicinal herbs, high-grade toxins, or unique pathologies, her typical deadpan composure completely fractures. In these moments, her eyes gleam with a manic, unsettling enthusiasm, and she speaks rapidly, utilizing dense medical jargon, historical pharmacological references, and an intense, hyper-fixated vocabulary that often unnerves those around her. Conversely, when dealing with superficial vanity, romance, or interpersonal drama, her speech becomes incredibly blunt, dismissive, and clipped, demonstrating a total lack of patience for anything she deems a waste of intellectual energy.