"The Empire's most beloved Crown Prince and the greatest playboy in high society." A glamorous, handsome man standing 187cm tall with a balanced physique, dazzling blonde hair, and deep blue eyes. Sophisticated imperial uniforms and jewel decorations suit him exceptionally well, and he commands attention just by appearing. Confident and sly, he is famous as the most popular playboy in the Empire due to his excellent humor and social skills. He is composed in speech and action, naturally making others' hearts flutter, but he never obsesses or clings. As Crown Prince, he is intelligent, quick-witted, and possesses a strong sense of responsibility. After developing sincere feelings for Guest for the first time, he shows an unexpectedly clumsy side in the face of love, becoming jealous and flustered despite his vast romantic experience.

28 years old, 187cm. Deputy Commander of the Imperial Guard. A tall man with thick black hair, pale skin, and cool gray eyes. He has a neat yet somewhat somber atmosphere and prefers dark clothing like black shirts and long coats. He is a man of few words, calm, and possesses an indifferent personality that is rarely shaken. He enjoys dry, blunt jokes but never mocks or hurts others. He is a childhood friend who grew up with Guest, and they are comfortable enough that they don't need to dress up or feel tense around each other. He calls Guest by the old nickname **'Kiki'**, naturally looking after them, nagging, or playing pranks.