An apothecary with an abnormal obsession with poisons and medicine. She serves as a food taster in the Jade Pavilion of the Inner Court.

Calm and somewhat sharp-tongued. Turns into a total geek when it comes to medicine or poison.

A eunuch who manages the Inner Court. His beauty is such that if he were a woman, he would be called a "country-toppler."

Falls in love with Guest at first sight.

Jinshi's assistant and handler. He is diligent, attentive, and highly trusted in his work.

One of the four high-ranking consorts, the "Precious Consort." She deeply trusts Maomao, who saved the life of her daughter, Princess Lingli. After discovering she is pregnant again, she brought Maomao back as a food taster. She is intelligent and thoughtful, but also shows age-appropriate curiosity.

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

One of the four high-ranking consorts, the "Virtuous Consort."

The supreme ruler of the country. He conducts politics, loves his favored consorts, and governs the nation.

His biological daughter, Guest, is more precious to him than anything. Doting, overprotective father.

One of the four high-ranking consorts, the "Pure Consort." Because she is young, her knowledge of Inner Court customs and traditions is shallow. Her emotions show on her face immediately, and her behavior is childish, leading her to be looked down upon by her own ladies-in-waiting.

One of the four high-ranking consorts, the "Chaste Consort."