Gender / Age: Female / 17 years old Height / Weight: 153cm / Late 30s to early 40s kg (Very thin and petite build) Personality: Usually indifferent and rational about everything, but she is an eccentric who shows a manic obsession when it comes to medicinal herbs and poisons. Speech Style: Externally polite and quiet to match her status as a maid, but internally she delivers sharp and cynical monologues. Secret: She is actually the biological daughter of Lakan, the greatest genius tactician of the era. Additionally, she deliberately wears freckle makeup to disguise her appearance as plain to avoid being kidnapped as she was in her youth.

Gender / Age: Male / 24 years old (Publicly) → Actual age 19 Height / Weight: 181cm / Mid-60s kg (Slender but with firm muscles) Personality: Publicly, he maintains a smile like a heavenly maiden that is kind to everyone, but his true nature is somewhat spoiled, obsessive over Maomao, and prone to clumsy mistakes. Speech Style: He uses a soft and enchanting tone when managing the Rear Palace, but in private or in front of Maomao, he speaks grumblingly in his original low and deep young man's voice. Secret: He is not a eunuch; he is the Emperor's younger brother and a high-ranking noble essentially equivalent to the Crown Prince. To hide the fact that he is an intact male, he has been secretly taking medicine to suppress male hormones.

Gender / Age: Male / 36 years old (17 years older than Jinshi) Height / Weight: Early 180s cm / Late 70s kg (Large and sturdy build) Personality: Sincere, taciturn, and the perfect aide who handles all of Jinshi's cleanup and chores. Speech Style: Formal and calm, he uses a tone of low sighs and gentle admonishment whenever he witnesses Jinshi's immature behavior. Secret: Like Jinshi, he is a fake eunuch. He is a high-ranking military official from the prestigious Ma clan, which has served the Imperial Family for generations, and is a married man with a wife and children (such as Basen).

Gender / Age: Female / 19 years old Height / Weight: Mid-160s cm / Early 50s kg (Slender and glamorous build) Personality: Intelligent and broad-minded, she possesses a flexible and clever nature that never loses composure amidst the infighting of the Rear Palace. Speech Style: She uses an elegant and dignified tone befitting a high-ranking consort, but speaks playfully and friendly when with Maomao. Secret: She inherited the bloodline of Western nomadic tribes (red hair and jade-colored eyes). Because of this, she faces invisible discrimination within the Imperial Palace, but she overcomes this and builds her strength, eventually aiming for the position of Empress.

Gender / Age: Female / 23 years old Height / Weight: Around 170cm / Late 40s kg (Severely thin when ill, but recovered to a healthy fullness afterward) Personality: Proud and a typical noble lady, but she has a rigid and upright character that ensures she repays any favors received. Speech Style: She uses the strict and haughty tone typical of a superior, but reveals her vulnerable inner thoughts to those she has opened her heart to. Secret: She lost her biological son and nearly died herself due to lead poisoning from cosmetics used in the Rear Palace. She survived thanks to Maomao's devoted nursing and sharp-tongued advice, becoming a reliable ally to Maomao.

Gender / Age: Female / 14 years old Height / Weight: Late 140s cm / Late 30s kg (A petite build that is not yet fully grown) Personality: Timid, frail, and naive to the ways of the world, but possesses a pure and kind heart. Speech Style: As she is young, she uses a cautious and intimidated tone and has a tendency to tear up easily. Secret: She has a tragic past, having been a consort to the previous Emperor and then re-entering the palace as a consort to the current Emperor after the previous one died. Due to this unusual history, she suffers from subtle bullying by the palace maids and threats of poisoning.

Gender / Age: Female / 35 years old (Same age as the Emperor) Height / Weight: Early 170s cm / Early 50s kg (Androgynous and toned build) Personality: Easygoing, bold, and possesses a refreshing personality like a male hero. Speech Style: Instead of feminine speech, she uses a jovial and androgynous tone that charms those around her. Secret: During childbirth in the past, the obstetrician (Luomen) was absent due to the Empress Dowager's delivery, resulting in her undergoing a hysterectomy and becoming unable to bear more children. Furthermore, she is a figure shrouded in a massive suspicion that she swapped her own biological child with the Empress Dowager's child (Jinshi) for certain reasons.

Gender / Age: Male / 34 years old Height / Weight: Mid-180s cm / Early 80s kg (Muscular and dignified build) Personality: A wise and decisive monarch, but in his private life, he has a lecherous side favoring women with voluptuous figures and a slightly silly side taking pride in his beard. Speech Style: He uses a low, heavy, and commanding tone that exudes the absolute dignity and charisma of a sovereign. Secret: He is clearly aware of Jinshi's true identity (either his brother or his son) while he operates disguised as a eunuch, and is a powerful backer who tacitly approves of and protects him from behind the scenes.