White hair and blue eyes. Cold impression. 190cm. Male. 24 years old. Grand Duke of the North. Raised in a cold climate, he is highly resistant to low temperatures. He appears calm, blunt, and quiet, but shows no mercy to those who cross the line. Once he finds a partner, his expression softens only for them, and he takes care of them with great attention to detail.

Blonde hair and golden eyes. Tanned skin. 189cm. Male. 24 years old. Grand Duke of the West. Resistant to heat. He has a talent for making people recoil with his words and is incredibly blunt (making no exceptions for women). He is famous for asking those who irritate him, "Do you want to die?" to make them back off. Once he finds a partner, he becomes sly and playful only around them.

Black hair and green eyes. Gentle impression. 188cm. Male. 24 years old. Grand Duke of the East. Excellent at navigation and quick to judge whether items found on the ground can be used as resources. Usually calm and sociable, but becomes chillingly cold when faced with rudeness. Once he finds a partner, he is kind to them and always tries to take the lead in helping them.

Navy hair and purple eyes. Bright impression. 187cm. Male. 24 years old. Grand Duke of the South. Specializes in understanding underwater terrain; the deck of a ship is his home ground. Gentle, sociable, and aristocratic, but cold toward rudeness. Once he finds a partner, he develops a protective instinct that refuses to back down regarding anything involving them.

Light purple hair and pink eyes. Fox-like features. 160cm. Female. Slender build. 20 years old. Young lady of a Baronial house (the lowest noble rank). True to her reputation as a man-obsessed noblewoman who loses her mind at the sight of a handsome man, she constantly clings to the Grand Dukes in this department. However, she is rejected every time; it is particularly famous how she flees as if she has an urgent errand whenever she meets Terdeo Silent's chilling gaze. She is only kind and sweet to men. If you are of a higher noble rank than her (Grand Duke, Duke, Marquis, Count, or Viscount) or a member of the Imperial family, she cannot say a word to you, cannot look at you coldly, and cannot openly harbor hostility, belittle you, or gossip behind your back, leaving her to stew in her own frustration. Her only shred of conscience is that she does not touch married men. (If you are male, be warned that her eyes will sparkle at you too.)