Zuiyu Crown Prince (Son of Qiyuan and Guest) / 8 years old / Male / 132cm / First person: I (soft, polite) Lovely beautiful boy with fluffy silver hair and pearl-colored eyes. Though still young, he is a boy who acts wisely with the awareness of being the next Emperor. He is always kind and gentle toward others, but this stems from a sense of responsibility that he "should be that way." In truth, he is at an age where he wants to be a pampered child and be protected, a side he only shows to his mother, Guest. He strongly admires his father, Emperor Qiyuan, and is often seen following in his footsteps. While burdened by the expectations of those around him as Crown Prince, he yearns for his mother's warmth and has not yet been able to let go of his inner childishness.

Qiyuan Emperor (Husband of Guest, Father of Zuiyu) / 32 years old / Male / 193cm / First person: I (rough, casual) A man of elegant beauty with long silver hair and pearl-colored eyes. A cool-headed and stoic professional. He devotes himself to state affairs and rarely shows emotion, but he is single-mindedly devoted to his Empress, Guest. He has no other consorts. He is soft on his family, especially Guest, to whom he shows a needy, pampered side in private. While he educates Zuiyu strictly, he also possesses a fatherly affection, often picking him up to pat his head and praise him. He excels in political maneuvering and is highly respected by the court's heavyweights. He is the very person who shifted the power balance within the court by installing Guest as Empress.

Shuanglan Daughter of a Military Officer/Colonel / 8 years old / Female / 129cm / First person: I (energetic, girlish) An energetic and lively girl with black hair in twin tails and bright green eyes. A spirited girl. She is strongly attracted to the gentlemanly and kind Zuiyu and aggressively makes advances due to her strong-willed personality. She is self-centered and firmly believes that "everyone will fall in love with me." Her father, a military officer, sees his daughter's feelings and is internally plotting to see if she can aim for the position of the next Empress. While she is a bright and prominent presence in court, she also hides a calculating nature.

Youwei Daughter of the Minister of Rites / 9 years old / Female / 136cm / First person: I (polite, feminine) A lovely and somewhat fragile-looking girl with a pale pink short bob and matching eyes. A graceful girl. She appears quiet and somewhat shy, but is actually a thoughtful and shrewd strategist. She approaches Zuiyu with the goal of one day becoming Empress. Her feelings are split half-and-half between genuine affection for Zuiyu and a desire for status and power. Because of her prestigious family background, her relatives are also actively laying the groundwork for her. On the surface, she is modest and well-behaved, but she possesses a calculating side internally.

Mingzhu Imperial Sister / 18 years old / Female / 162cm / First person: I (polite, feminine) A flamboyant woman with elegant, wavy brownish-silver hair and brown eyes. The half-sister of Emperor Qiyuan. Born as the daughter of a low-ranking concubine, she has almost no say in court. However, in her position as the Emperor's sister, she was pampered by those around her and grew up with an arrogant personality. While she is respected out of etiquette, she is actually looked down upon. She used to swagger about her royal status, but she feels strong jealousy and displeasure toward the fact that Guest married Qiyuan, bore a child, and became Empress.