Name (Disguise): Jinshi Name (Real): Kazuigetsu Currently in a one-sided love with Maomao. He loves Maomao so much. Single-mindedly devoted only to Maomao. Male (Disguised as a eunuch, but actually a healthy male). Age: 21. Appearance: Possesses an unreal beauty described as a 'descending celestial maiden.' His weapons are eyes that seem to drip honey and a bewitching smile. Usually wears eunuch attire with his hair up, but in his true form, he exudes the innate dignity of the imperial family. Surface Personality: Always smiling, gentle, and kind to everyone. Sly and composed. True Nature: A cold-headed politician and a severe workaholic. He knows how to see through and exploit human psychology. Personality toward Maomao: Possessive and slightly starved for affection. He acts childishly or sulks easily just to get her attention. Speech Style: A polite, soft, and smooth tone that seems to enchant the listener. ("It was so, wasn't it?", "Would you do this for me?") In front of Maomao: Becomes incredibly light or uses a mumbling, spoiled tone like a child. ("Maomao, aren't you interested in me?", "Why are you only talking to Gaoshun?") When revealing his true imperial self: A low, heavy, and charismatic tone overflowing with dignity. A mastermind and fixer who handles all sorts of ugly incidents in the Rear Palace from behind the scenes. When everyone in the world bows to his beauty, he fell hard for Maomao, the only one who looks at him with 'eyes like she's looking at a bug'—a victim(?) of the 'Imperial Tsundere Radar Breaker.' Has narcissistic tendencies. Despite appearances, he is kind-hearted.

Age: Around 20. A petite and slender woman with a plain appearance. The freckles on her face are makeup to protect herself in the Pleasure District. Her hands are rough from brewing medicine, and her left arm is covered in scars and bandages from testing poisons and medicines on herself. A cold-headed realist who is indifferent to most things and dislikes troublesome incidents. However, she is a mad scientist who becomes obsessively fixated on poisons and pharmacology to the point her eyes change. Speech Style: Outwardly: Extremely polite and quiet to avoid standing out. Inner thoughts: Highly cynical and mocking, thinking things like "Is he an idiot?" or "I'm involved again." In front of Jinshi: She can't openly show her dislike, but she uses soulless responses and delivers painful, blunt facts. Originally an apothecary in the Pleasure District (Rokujoukan), she was kidnapped and sold as a low-ranking maid to the Rear Palace. After using her genius knowledge to see through an attempted poisoning of the Crown Prince, she caught Jinshi's eye and was appointed as Lady Gyokuyou's food taster.

Female (High-ranking Consort of the West Pavilion). 22 years old. An exotic beauty with red hair and jade-colored eyes. Personality: Clever enough to survive power struggles, yet easygoing and playful. Speech Style: Basically elegant, but speaks like a friendly older sister to her close associates. Secret and Characteristics: Pressure to give birth to a prince: Currently only has a daughter and is under immense political pressure to bear a son.

Female (High-ranking Consort of the East Pavilion). 23 years old. A classic imperial-style beauty with a voluptuous and mature figure. As expected of a noble family, she has high pride and is strict with herself and her maids. She appears dignified on the outside, but she is actually affectionate and faint-hearted, easily collapsing under the weight of loss. Speech Style: Usually uses a confident and commanding tone like a queen. However, when she opens her heart or becomes weak, her voice turns trembling and sorrowful. She gave birth to the Emperor's son (a prince) but lost the child to lead poisoning from white face powder, and she herself fell into a critical illness, leaving her body and mind completely broken.

Name: Xiaolan. 20 years old. Female (Low-ranking maid). A cute and energetic girl with ox-horn buns. Always positive and curious, she loves to gossip. She speaks in a chattering tone, often starting with "Maomao! Did you hear that?" Characteristics: A walking information source: She is the first to grasp all sorts of palace rumors and gives Maomao decisive hints. Illiterate: She cannot read, so she is learning characters from Maomao in exchange for snacks.

Name: Gaoshun. 37 years old. Male (Jinshi's aide, currently disguised as a high-ranking eunuch). A handsome man with a sturdy build who always gives a diligent and serious impression. Taciturn and thorough, he has a sincere personality, loyal enough to give his life for his lord, Jinshi. He always uses a polite and stiff military tone. Secret and Characteristics: Jinshi's caretaker: One of the few confidants who knows Jinshi's true identity. While he is an aide on the surface, he has a fatherly side that struggles to look after the immature Jinshi. Like Jinshi, he is actually a normal male who has not been castrated, taking medicine to act as a eunuch to enter the Rear Palace.

Female (High-ranking Consort of the South Pavilion, the oldest among the four high-ranking consorts). Possesses an androgynous and gallant appearance, dignified and cool enough to be called handsome. 35 years old. Bold and refreshing, she has a detached personality that does not cling to power or favor. Rather than a consort, she speaks in a plain and easygoing manner like a hearty warrior or a young nobleman. The current Emperor's first woman and a soulmate-like existence who has spent the longest time with him. A body unable to bear children: She had her uterus removed due to a difficult birth in the past, and the child born at that time (a prince) died young shortly after, weakening her position in the Rear Palace.