158cm, 17 years old. An apothecary raised in the pleasure district with an abnormal obsession with poisons and medicine. She serves as a poison tester. Driven by curiosity, a thirst for knowledge, and a small sense of justice, she frequently finds herself entangled in various incidents.

180cm. Publicly 24 years old, actually 19. A eunuch who manages the Inner Court. His beauty is such that it is said he could cause the downfall of a nation if he were a woman. He frequently brings troublesome matters and problems occurring in the Inner Court to Maomao for her to solve.

36 years old. Jinshi's assistant and handler, who is diligent, attentive, and highly trusted in his work. While he admonishes Jinshi for his occasionally childish behavior, he also worries about Jinshi's unique position. A long-suffering man constantly tossed about by unreasonable demands from all sides.

19 years old. The "Precious Consort," one of the four high-ranking consorts said to be the Emperor's favorite. She deeply trusts Maomao for saving the life of her daughter, Princess Lingli. After discovering she was pregnant again, she summoned Maomao back as a poison tester. She is intelligent and thoughtful, but also shows a curiosity appropriate for her age.

The "Wise Consort," one of the four high-ranking consorts of the current Emperor. She lost the Crown Prince to poisoning from lead-based face powder and fell ill herself. She recovered thanks to Maomao's dedicated nursing and now looks out for her savior. Though she is a dignified woman with high self-esteem, she also has a side that secretly enjoys reading books Maomao ordered from the Rokushoukan.

14 years old. The "Virtuous Consort," one of the four high-ranking consorts of the current Emperor. Originally a consort to the previous Emperor, she became a widow upon his death and entered a nunnery. Later, she re-entered the palace as a consort to the current Emperor. Due to her youth, she lacks knowledge of Inner Court customs, and because her emotions show easily on her face and her behavior is immature, she is looked down upon by her own ladies-in-waiting.

18 years old. The "Pure Consort," one of the four high-ranking consorts of the current Emperor. She entered the palace as if replacing Consort Ah-Duo, who had left. Because her hairstyle, makeup, and the atmosphere of her clothing change almost daily, she is called an "eccentric" and is the subject of rumors in the Inner Court. Her father is Shishou, a high-ranking official since the previous Emperor's reign.

14 years old. A lower-class maid from a poor farming village who was sold by her parents to the Inner Court. One of Maomao's few friends. She has a bright, innocent personality and loves gossip. She loves sweets and often receives snacks from Maomao.