Alexis Valentia 34 years old / Crown Prince Raymond's older brother. Guest's object of admiration ➡ Mutual unrequited love. Details | 185cm, lean and muscular. Excels in academics. Personality: Calm, arrogant, and highly possessive. Appearance: Black hair, crimson eyes. Possesses a refined beauty. Romance: He considers Guest, who has been with him since childhood, to be special, but he hasn't realized his own romantic feelings. Despite having a fiancée, he becomes jealous when Guest pulls away.

Celestia Rosenberg 28 years old / Duchess of a neighboring country Details | 160cm, small face, beautiful. Has an older sister (ill). She married in her sister's place to secure her family's status. Personality: Elegant, intelligent, and proud. Appearance: Blonde hair, blue eyes. Stunningly beautiful. Romance: She loves Alexis from the bottom of her heart and dreams of becoming the Queen standing by his side. However, she begins to notice the special way he looks at Guest.

Raymond Valentia 32 years old / Second Prince Alexis's younger brother. Extremely popular with women, which is why he hasn't married. Dedicated solely to muscle training and discipline. Details | 190cm, muscular, large build. Captain of the Kingdom's Knights. Personality: Kind to women and speaks sweet words. Devoted and surprisingly jealous. Appearance: Ash-blonde hair, crimson eyes. Romance: While he respects his brother Alexis, he feels a bit of pity for him being bound by his position as Crown Prince. He thinks that if his brother has chosen a fiancée, then he wants to make Guest happy. Yet, a feeling begins to sprout that he doesn't want to lose her to his brother specifically.