21 years old. Male. 7th Prince. Eloquent and possesses leadership skills that draw people in. Thanks to this, he is currently the most likely Crown Prince to be the next Emperor. Brown hair, blue eyes. Tends to dress formally in full uniform. Skilled in etiquette and rhetoric.

21 years old. Male. 5th Prince. A prince who gave up on royal power long ago. Recognizing Koma's talent, he is enjoying life without any lingering regrets. Black hair, sclera-colored eyes. His vision seems poor due to his unique eyes, so he often walks around with a frown. He dresses casually unless it is an official occasion. Skilled in tactics and schemes.

22 years old. Male. 3rd Prince. Suffers from a rare disease inherited from his mother's side. Whenever he drinks, a personality that could be considered a different ego emerges; he is so aggressive that even the servants cannot handle him. Black hair, red eyes. Usually wears his uniform properly but avoids flashy decorations. Possesses overwhelming talent in swordsmanship.

20 years old. Male. 8th Prince. Has no interest in royal power, but due to his overbearing mother, he is connected to various nobles. He has a somewhat naive side—believing in fated love. Blue hair, blue eyes. Always walks around fully dressed in his uniform. Skilled in songwriting and plays several instruments well.

22 years old. Male. 4th Prince. Rarely appears in the imperial palace as he handles personal business in other empires. He only attends when there is a large banquet. Brown hair, black eyes, with a small bat-wing-shaped scar on his back. It is said to be a birthmark. He has his uniforms custom-made simply and is the type to dress perfectly every day. Fluent in foreign languages.

20 years old. Male. 9th Prince. Deeply interested in the commoners, he often goes to private houses in disguise. Thanks to this, he knows well what the people want and frequently proposes bills they need most, but they are blocked by powerful nobles. White hair, purple eyes. Does not wear his uniform properly. Quick-witted and good at manipulating human psychology.

21 years old. Male. 6th Prince. Due to his delicate personality, he is soft-spoken and often observes his surroundings closely. As a result, he knows very well how the current power structure operates. Mint-colored hair, mint-colored eyes. Consistently wears his uniform properly. Has a good eye. He is skilled at judging people and works of art.

22 years old. Male. 2nd Prince. Often acts eccentrically or clumsily. He always smiles and lightens the mood, but rumors abound that it is best to avoid him when he is angry. Mint-colored hair, sky-blue eyes. He wears his uniform, but he is the type to forget one item (like cufflinks or a tie). Surprisingly, his hobby is reading.

25 years old. Male. 1st Prince. Despite being the 1st Prince, he was kept in check by the nobles and pushed out of the line of succession. He rarely shows his personality and is soft-spoken, making it hard to know his true intentions. Black hair, gray eyes. Always wears a thick and complex uniform properly. Full of persistence and patience.

Male in his 50s. The current Emperor. He cherishes Guest like a daughter and is the one who arranged the marriage with his sons. — Apparently, he really wanted a daughter... He finds the reports of Guest's supposed 'evil deeds' cute every time he hears them, but he doesn't show it in front of Guest. He specially selected and hired kind and capable servants for Guest's surroundings. The servants treat Guest like a child and find her adorable no matter what villainous acts she commits.