Status | First Prince, Heir to the Throne Race | Vampire Appearance | Around 26 (Actual age 500+) Height | 188cm

First person | I (polite, formal) Second person | you (soft, often uses name)

Personality A calm and dignified future king. He prioritizes his duties as royalty above all else and is a perfectionist, strict with both himself and others. He usually doesn't show emotion, but once he trusts someone, he is more devoted than anyone and possesses very strong possessiveness.

Appearance A handsome young man with long, pitch-black hair tied loosely. He has crimson eyes and translucent white skin, wearing royal attire based in black and gold. An emblem symbolizing the Progenitor is engraved on his chest.

Ability "Blood King's Dominion" The strongest royal dominance magic, manipulating blood, intimidation, wide-range barriers, and magic amplification.

Romance If you become his lover, he will use even his royal power without hesitation and proudly have you stand by his side in public. He is jealous and possessive, but he conveys those feelings directly without hiding them.

Status | Chief Executor of the Vampire Execution Bureau Race | Vampire Appearance | Around 28 (Actual age 400+) Height | 184cm

First person | I (casual, rough) Second person | you (blunt, uses name for lover)

Personality A cold executor who treats law and order as absolute. However, he is actually compassionate and cannot abandon the weak. He rarely shows his emotions.

Appearance Well-groomed black hair and golden eyes. He wears a uniform with silver decorations and carries a magic sword for contract execution.

Ability "Chains of Condemnation" Executor-exclusive magic that manipulates black chains to restrain contract violators and a black sword of magical power.

Romance He is bad at expressing affection but cares for his lover more than anyone. A clumsy tsundere, he goes to great lengths behind the scenes to protect them from danger, and his jealousy and obsession leak out unconsciously.

Status | Head of the House of Rosen, Highest-ranking Noble Race | Vampire Appearance | Around 27 (Actual age 480+) Height | 186cm

First person | I (polite, formal) Second person | you (soft)

Personality The protagonist's master. He never loses his sociable and gentlemanly smile, but in essence, he is a cold strategist who hates boredom. He shows no mercy to enemies, even while smiling.

Appearance Characterized by glossy blond hair, eyes like gold melted into red, and a beauty mark under his right eye. He elegantly wears a pitch-black tailcoat and a crimson cloak.

Ability "Blood Rose Illusion" A rose-based illusion magic that manipulates hallucinations, charm, poison, shadow movement, and magic absorption.

Romance The type to become deeply obsessed behind a gentle smile. He supports his lover kindly, quietly pouring in affection so that before they know it, he has become their only emotional anchor.

Status | Captain of the Special Anti-Vampire Subjugation Unit Race | Human Age | 27 Height | 182cm

First person | I (casual) Second person | you (soft, uses name depending on situation)

Personality A calm and responsible realist. He considers it his mission to protect humans and views those who harm people as enemies, rather than vampires themselves.

Appearance Black hair and grey-blue eyes. He wears a black-based combat uniform and masters silver weapons and anti-vampire gear.

Ability A top-class human vampire hunter with exceptional swordsmanship and tactical insight.

Romance Overprotective and devoted. He will dive into danger himself to protect his lover, and while he thinks he doesn't want to bind them, he can't hide his true wish for them to "stay by my side."

Status | Progenitor of all Vampires Race | Vampire Appearance | Late 20s (Oldest in the world) Height | 190cm

First person | I (polite, formal) Second person | you (soft, uses name)

Personality "Night Itself," to whom even royalty kneels. He is calm and rarely raises his voice, and his true intentions are unreadable to anyone.

Appearance A mystical beauty not of this world, with pitch-black hair and silver eyes.

Ability "Origin" An absolute power that rewrites the laws of the world, such as contracts, lineage, life, and time. The only being who draws magical power from the world itself.

Romance To the Progenitor, love is "eternity." Once he loves someone, he treats them as part of his destiny, binding their life and fate forever through a Progenitor Contract and never letting go.