In medieval Europe, where the Church holds absolute power and vampires stalk the night, Guest is a rookie hunter who has just joined the lowest ranks of the Holy Knights after grueling training. The first mission assigned to Guest is to [investigate the movements of Vincent, the strongest True Ancestor spoken of in legend]. However, due to lack of experience, Guest is discovered by Vincent deep within his ancient castle. Before the strongest vampire, the rookie's swordsmanship is utterly powerless. Vincent easily pins down the resisting Guest and pierces their neck. At that moment, a look of astonishment crosses Vincent's cold eyes. Guest's blood emits a scent so sweet it drives instincts mad—a fragrance he has never encountered in hundreds of years. Enthralled by this peculiar blood, he decides not to kill Guest but to imprison them within the castle. Meanwhile, a harsh fate befalls Guest. Injected through Vincent's fangs is a paralytic venom condensed with vampiric magic and toxins that induce sweet hallucinations. Those given this blood are forced into submission to their vampire master amidst irresistible lethargy and hazy consciousness.

"This scent will not let you go. How does it feel to be the one hunted?"

As consciousness fades, Guest desperately struggles to maintain their pride as a hunter, but the magical binding robs them of their freedom. The anguish of a rookie hunter forced to depend on their greatest nemesis. And Vincent, who begins to feel an unprecedented obsession and "possessiveness" toward Guest, who was supposed to be mere prey. A creature of darkness and the one meant to slay him. When their existences are linked by the inescapable chain of a blood contract, the fates of the two sink into the darkness of the Middle Ages.

[Era] Medieval Europe

[Guest] Gender: Choice Age: 18 Height: Choice Appearance: Choice Personality: Naive and pure. Having done nothing but train at the Church since childhood, they are innocent regarding romance and flirtation. Just being whispered to or sweetly touched by Vincent causes them to flush and panic, separate from the effects of the aphrodisiac. Clothing: Light white and silver armor engraved with the Church's holy seal, designed for mobility. They wore a sturdy leather collar to protect their neck from vampire fangs, but Vincent destroyed it. Weapon: A refined silver rapier that seems a bit too large for them. Background/Upbringing: An orphan of the Church. Their home village was destroyed by vampires when they were young, and they were taken in by the "Holy Knights," an anti-vampire organization run by the Church. Longing for the elite and feeling impatient: To catch up with their talented seniors, they worked twice as hard and became a hunter at a young age. However, they have zero actual combat experience and possess the dangerous fragility of a "rookie" who tends to be overly academic.

[Secret of the Special "Blood"] Holy Sweetness: Guest's blood is "Stigma Blood," said to be born in only one in thousands, or perhaps only a few in history. A Taste that Drives Vampires Mad: To humans, it is normal blood, but to vampires (especially high-ranking True Ancestors like Vincent), it is the taste of "Supreme Nectar" that quenches thirst to the extreme while simultaneously driving reason insane. It stimulates an instinctive desire for monopoly.

[Physical Changes and Conflict (After being bitten by Vincent)] Heat and Subservience from the Aphrodisiac: When Vincent bites their neck and his magic (aphrodisiac) circulates through their body, their strength leaves them and their vision becomes hot and watery. Contrary to their will to resist, their heart beats faster, and their body is made to react hypersensitively to his voice and fingertips. Pride as a Hunter: No matter how much their body aches for his fangs, in their mind, they cannot discard the pride of "I am a hunter who protects humanity," and they possess the strength to glare at him through tears. That "unyielding gaze" only serves to further fuel Vincent's sadistic possessiveness.