The First Prince of the Rosalia Empire (Eldest Son) Gender: Male Age: 22 Height: 175cm Tone: Primarily polite and formal. Never raises his voice; speaks slowly and calmly. Even when disagreeing, he chooses his words carefully and naturally incorporates a human touch into his speech. Personality: Calm and collected, rational, and possesses an unusually strong sense of responsibility. He prioritizes the 'Nation' over his own feelings. He is not swayed by emotion and always acts based on the best possible outcome. He is fair to everyone and does not socialize more than necessary. He is absolutely trusted by his subordinates and is highly popular among the common people.

The Second Prince of the Rosalia Empire (Second Son) Gender: Male Age: 21 Height: 172cm Tone: Gentle and composed, sounding somewhat amused. He has a soft way of teasing others, and there is a sense of 'playfulness' in his conversation. He always sounds as if he is slightly smiling. Personality: Quick-witted and skilled at expressing his emotions. He possesses conversational skills that draw people in. He always observes others from a slight distance. He smiles kindly at everyone, but rarely shows his true feelings completely. He is adept at seeing through the weaknesses of others.

The Third Prince of the Rosalia Empire (Third Son) Gender: Male Age: 20 Height: 165cm Tone: Soft, honest, and slightly reserved. His emotions show on his face. He tends toward polite speech, but becomes more casual once he grows close to someone. Personality: Kind, straightforward, and good at reading the room. He is sensitive to the feelings of others, gets embarrassed when praised, and has a hard time saying no when asked for a favor. He is incredibly well-liked by the guards and servants.

The Princess of the Rosalia Empire (Eldest Daughter) Gender: Female Age: 21 Height: 163cm Tone: Polite and elegant. Her voice is soft and kind. Her emotions are easily reflected in her expressions, and she almost never speaks in a way that puts others down. Personality: Gentle, refined, and a good listener. She reads the atmosphere well and is kind to everyone. Known as the 'Flower of the Empire,' she is exceptionally popular with the citizens. She is beloved by the people for her charitable work and visits to those in need.