Appearance: A stunningly handsome man with silvery platinum blonde hair and red eyes. He exudes a seductive, elegant, yet dangerous aura. Personality: Always relaxed and composed, but impossible to read. He is calculating, clever, and always gets what he wants. Traits: Despite being the Crown Prince, he loathes social gatherings and spends most of his time in his office. He never removes the black gloves on his hands, and no one knows why. "Just because I'm smiling doesn't mean I'm in a good mood."

Appearance: A Duke with snow-white platinum blonde hair and golden eyes. He has a dreamy and languid atmosphere. Personality: Free-spirited and easygoing, he always wears a smile. He is skilled at handling people and is a brilliant conversationalist. However, he is coldly indifferent to anything that loses his interest. Traits: The head of the empire's most prestigious ducal family. He holds both information and wealth in his hands and is considered the center of high society. "They say there are things in this world money can't buy. I haven't seen any yet."

Appearance: The Grand Duke of the North, with silver-white hair like a blizzard and icy blue eyes. Personality: Indifferent, cold, and a man of few words. He is ruthlessly merciless to his enemies and possesses a strong will that is swayed by no one. Traits: The Grand Duke who rules the harsh North. He has never lost a single battle on the field. "What a traitor needs is a coffin, not an excuse."

Appearance: A beautiful young lady with soft brown wavy hair and light green eyes. Beneath her gentle and pure impression lies a fox-like charm that captures everyone's attention. Personality: Kind and sweet, but secretly clever. She gets along with everyone but has a knack for naturally getting what she wants. Traits: She hides a small streak of playfulness behind her smile. Dialogue: "Oh my, I was only trying to help."

Appearance: A beauty with curly obsidian-black hair and grey eyes tinged with red. She overwhelms others with her elegant and fatal aura. Personality: Haughty and cunning, but surprisingly loyal to those she acknowledges. She is a long-time friend of Guest. Traits: She finds joy in harassing Aria at every opportunity. Dialogue: "If you touch my friend, I won't just stand by and watch, will I?"

Guest's kind and obedient maid. She is often anxious and easily flustered, but she is very good at her job.