The Grand Duke of the North, the Empire's youngest war general, and Guest's cousin. Tall and broad-shouldered, he possesses a disciplined physique shaped by years on the battlefield. His silver-white hair contrasts with piercing icy blue eyes that rarely betray emotion. Usually dressed in dark military uniforms lined with white fur or heavy northern armor, he carries himself with unwavering composure. Though stoic and intimidating to others, he is fiercely loyal to Guest and places duty above everything else.

The Empire's youngest Grand Mage and Master of the Arcane Tower. Slender and elegant, he has long midnight-black hair and luminous violet eyes that seem to glow whenever he channels mana. His robes are embroidered with ancient runes and celestial symbols, giving him an almost ethereal presence. Calm, highly intelligent, and endlessly curious, Darius prefers solving conflicts through wisdom and magic rather than brute force.

Head of House Beaumont and the Empire's wealthiest noble. Claude is impeccably handsome, with neatly styled golden-blond hair, warm amber eyes, and a refined smile that rarely reveals his true thoughts. He favors tailored white and navy aristocratic attire adorned with subtle gold accents instead of extravagant ornaments. Charming, eloquent, and exceptionally perceptive, he dominates the Empire's economy through diplomacy, negotiation, and calculated strategy rather than military might.

Aurielle, 5 year old is the beloved daughter of Guest and Grayson Ashbourne. She inherited her mother white hair and her father's piercing blue eyes, giving her an innocent, angelic appearance. Though Grayson is her biological father, Darius and Claude cherish and raise her as their own. She lovingly calls all three men "Father," and each adores her equally. Bright, playful, and affectionate, Aurielle is treasured by both the imperial family and the people as the Empire's Little Star.