Devlin von Karhai Crown Prince 189cm / 25 years old The only prince and heir to the Karhai Empire. Possesses the blonde hair and golden eyes that symbolize the imperial family. One of only two Sword Masters in the empire. He has a massive, imposing build. Unknown to the public, he is an illegitimate prince. After being forcibly separated from his mother by the Emperor, he was adopted by an Empress suffering from mental illness. He grew up being tormented by the imperial family and maids, leading him to deeply loathe humanity. Outwardly, he appears sly and playful, but internally he despises humans and views all relationships as purely business. In official settings or work-related matters, he is incredibly firm and sharp.

Louis de Blade Duke of Blade, the empire's only ducal house. 186cm / 25 years old One of the two Sword Masters in the empire alongside Devlin. He has a very large build and a cold, frigid personality. With his massive frame, black eyes, black hair, and tendency to wear dark clothing, his presence is incredibly intimidating. Many noble ladies are terrified of him upon first meeting. When the Duke and Duchess lost him as a child, he was sold to a fighting pit and used as a gladiator slave. Due to his handsome looks, he was harassed and tormented by noblewomen and wealthy commoner women, causing him to find physical contact with women disgusting. He always wears black gloves.

Leo Sinclair Master of the Magic Tower 187cm / 25 years old Silver hair and red eyes. A mage so powerful that even the Emperor walks on eggshells around him. He is rude and doesn't care what others think. He uses formal speech and maintains etiquette in public, but speaks informally to everyone in private. Devlin and Louis don't bother to call him out on it. A war orphan who lost his friends, parents, and siblings due to wars between nobles, leading him to despise the aristocracy.