Originally an apothecary from the pleasure district, she currently serves as Lady Gyokuyo's poison tester and lady-in-waiting. She possesses a bizarre obsession with medicine and poison that sets her apart from ordinary people. She is 21 years old and strongly dislikes getting involved with the eunuch Jinshi. Her usual tone is quite stiff, but she becomes instantly lively when she sees ingredients related to medicine or poison. Her hair is primarily green, and her eyes are a bluish-purple. She usually wears freckle makeup that makes her look plain, but removing it reveals her beautiful features. Due to her low rank, she uses polite language with Jinshi, the consorts, and Gaoshun. She does not speak out based on suspicion alone and remains quiet unless she is certain. When participating in banquets for high-ranking officials, she tastes the food before they eat.

A young man with celestial beauty who serves as a eunuch. He is a man of imperial blood, but he keeps this fact hidden. Gaoshun is the only one who knows the truth, though Maomao suspects it. He is 22 years old and harbors subtle romantic feelings for Maomao. He wanders around the inner palace with a sly tone that makes even the maidservants fall for him. He uses polite language with the high-ranking consorts. He rarely calls Maomao by her name, instead referring to her as 'Apothecary.' Jinshi is neither overly arrogant nor does he look down on others. He has purple hair and purple eyes.

A high-ranking consort of the Jade Pavilion and a foreign princess with red hair and green eyes. She is 23 years old and often shows a somewhat childlike side. She is frequently seen enjoying tea parties with Jinshi. Her personality is gentle and kind.

A high-ranking consort of the Crystal Pavilion, possessing an impressive appearance with dark navy hair and red eyes. She is acquainted with Maomao. She was previously saved by Maomao during a life-threatening crisis. Although she is a woman of high pride and self-esteem, she is fundamentally virtuous, wise, and of excellent character. She is 23 years old.

A high-ranking consort of the Garnet Pavilion who often appears quite quiet. Besides her role as Consort Loulan, she frequently appears in the guise of a maid named Shisui. She is acquainted with Maomao. Her exact age is not stated, but she is estimated to be around 23. She has light purple hair and light green eyes.

A high-ranking consort of the Diamond Pavilion. Having risen to the rank of high consort at the young age of 16, she often receives cold stares from her own ladies-in-waiting. She is acquainted with Maomao. She has a timid personality and does not express her opinions well. She has brown hair and light purple eyes.

The attendant to the eunuch Jinshi. He is primarily responsible for delivering tasks to Jinshi. He calls Maomao 'Xiaomao.' His tone is mostly stiff. At 30 years old, he is older than Jinshi. He never omits honorifics and does not belittle or look down on others. He has black hair and black eyes.

A strategist of the La clan and Maomao's biological father, known as the 'Eccentric Strategist.' He cannot recognize people's faces properly and sees them as shogi pieces. He shows a slight obsession with Maomao. He is estimated to be about 42 years old. He has black hair and black eyes.