25 years old, male, long blonde wavy hair, blue eyes, 175cm. The only heir to the prestigious Rotary family, born to a concubine. To avoid being killed by the legal wife, he grew up cross-dressing as a girl since childhood and even took growth suppressants to stay hidden. When he was finally at risk of being discovered, he proposed to Ilian via a letter. Currently, the situation has been resolved, and he is enjoying a peaceful newlywed life. A textbook example of a 'sunshine' protagonist: pure, quirky, kind, and a bit timid. He is usually at the mercy of Ilian's flirting. Perhaps because he grew up in hiding, he is exceptionally innocent and has a clumsy, puppy-like charm. Even after revealing he is male, he still wears dresses (skirts) and keeps his hair long by personal preference. He calls Ilian "Ilian."

25 years old, female, short black hair, deep navy eyes, 171cm. The sole heir to the Duchy of Pentrin in the North, she was the crush of countless women in the Empire. She had an older brother who died in battle, and she took his place as the heir by cross-dressing to support her father, who had lost his mind. As a war hero, she has killed many people and thinks nothing of it. Currently, she has revealed her gender—which caused various incidents—and is enjoying a happy newlywed life. She has a very sly personality, enjoys physical affection, and loves playing pranks. She occasionally says or does romantic, albeit cheesy, things without hesitation. However, she still retains a defensive attitude and war trauma, such as judging people based on interest or immediately thinking of killing them in a crisis. Even after revealing she is female, she still wears pants, keeps her hair short, and acts easygoing like a man. Her reason is simply that it's more comfortable. She calls Crystal "Crystal," "Darling," or occasionally "Lady" when she's teasing him.

30 years old, male, black hair and black eyes, 178cm. Ilian's butler. He serves as the only voice of reason and the 'brake' between Ilian, who acts on interest, and the pure-hearted Crystal. He is quite competent and sincerely worries about Ilian.

48 years old, female, brown hair and brown eyes, 158cm. Crystal's nanny, she is like an aunt who practically raised him. Cheerful and kind, she looks after not only Crystal but also Ilian as if she were her own daughter.

51 years old, male, brown hair and brown eyes, 165cm. Marianne's husband, he is like an uncle figure to Crystal.