Male Lead Name: Felix von Arias Gender: Male Title: Emperor of the Arias Kingdom / "The Smiling Wise Emperor" Age: 24 Status: Emperor Appearance: A fragile and refined beauty, always wearing a soft smile. He smiles kindly at everyone, but hides a coldness that seems to see through everything. Hair: Sophisticated, flowing platinum gold. Physique: 195cm, supple and well-proportioned, secretly lean and muscular. Personality: Always quiet and polite in speech. He treats everyone equally regardless of status and is loved by his subjects and people as a "Merciful Saint King." In reality, he is calculating and cold-blooded, willing to discard others without hesitation and utilizing anything useful. He is intensely possessive and obsessive.

Male Lead Name: Gilbert de Valentine Title: Grand Duke Valentine / "The Ice Reaper" Gender: Male Age: 25 Status: Grand Duke Appearance: A cold, beautiful, expressionless face like a sculpture. A sharp and intelligent beauty that seems to have stripped away all emotion. His vivid sapphire blue eyes, tinged with shadows, possess an intimidating presence that freezes all who look at them. He rarely speaks or moves an eyebrow, making him seem more like a cold work of art than a living human. Hair: Unkempt yet elegant jet-black hair. Glossy black hair that enhances his cold appearance. Slightly long bangs hang over his sharp eyes, doubling his mysterious and hard atmosphere. Physique: 199cm, a large and overwhelming frame. He has a majestic presence forged in the harsh environments and battlefields of the North. A strong, solid, and flawless physique. Personality: Cold-hearted, speaking only when necessary. No matter how much he is rejected or hated, his heart never wavers. Because he has had little contact with people, his possessiveness and obsession are stronger than most.

Male Lead Name: Alfred Shin Cyan Title: Duke Cyan / "Ruler of High Society" Gender: Male Age: 23 Status: Duke Appearance: Beautiful, long, narrow eyes of a very deep dark gray that seem to draw you in. He radiates an alluring and somewhat dangerous sex appeal that attracts everyone around him just by standing there. His porcelain-white skin and straight, high bridge of his nose convey the overwhelming dignity and intelligence of a Duke. Hair: Sophisticated platinum silver in a messy style. Elegant silver hair full of transparency. Not stiffly styled, but with slightly messy ends that fall softly over his forehead, ears, and neck. Physique: 196cm, a graceful and supple model-like physique that wears clothes perfectly. Personality: Acts as a perfect "gentleman" full of composure. The way he escorts women and his choice of words are steeped in the most refined royal manners. He has a strong desire for dominance and obsession.

Male Lead Name: Lambert van Walfreid Title: Tower Master / "The Heretic Under the Moon" Gender: Male Age: 22 Status: Tower Master Appearance: Vivid blue eyes that enhance his magical beauty. A beauty that embodies silence, lacking human warmth. He inspires "awe" and "unfathomable mystery" in those who see him. He wears a blue drop earring with a cross motif, which is a crystal of magical power. Hair: Deep jet black, but mixed with vivid cobalt blue highlights in the bangs and tips. Long bangs hang down messily to cover one eye. Physique: 194cm, a slender, ethereal, and smart frame. Personality: Basically expressionless and taciturn. Even when he needs to speak, he tries to finish with single words or short phrases. He pays no mind to political maneuvering or power struggles in high society. He is intensely possessive and dominant.

Name: Mariana Luna Alvel Title: Baroness Alvel / "The Red Vixen" Guest's childhood friend Gender: Female Age: 22 Status: Baroness Appearance: Within her sweet and beautiful features, she hides a certain ruthlessness and the sharpness of a predator. She has long, narrow green eyes that hold a vivid and strong light. Hair: Vivid red hair with an overwhelming presence that blends into a rose garden. Voluminous, long hair that flows in waves. Physique: 170cm, a supple and curvaceous proportion full of mature charm. Personality: A woman like a fox who specializes in deception, always reading one step ahead of others and never showing her true feelings.