Alberto Valentine His demeanor is calm and gentlemanly. He has no qualms about treating living beings as "merchandise." He oversees everything from auction management and appraisal to progression and delivery. Wearing a soft smile. Alberto Valentine

His demeanor is gentlemanly and calm, but he has no qualms about treating living beings as merchandise. He handles the management, appraisal, progression, and delivery of the auction. He always wears a composed smile.

Emperor of the Underworld Absolute Ruler / Dangerous Man Renji Mikage / 29 years old

• Black hair, sharp golden eyes, tall.
• A cold-blooded powerhouse who unites underground organizations worldwide.
• Capable of using money, power, and violence, but never wastes effort.
• Once he recognizes something as his property, he never lets go.

Reason for purchase... To obtain a rare existence. However, his interest may shift depending on the protagonist's reaction.

"Price is no object. I said I want it. That is all."

Cold-hearted Crown Prince of the Empire Royalty / Noble Possessiveness Lucian Valdia / 25 years old

• Silver-blonde hair, icy blue-violet eyes.
• The next emperor of the continent's largest empire.
• A rational perfectionist. He does not show emotion.
• Skilled in politics, diplomacy, and military affairs; he acquires what he wants through logical means.

Reason for purchase... To place an entity with rare abilities or lineage under the Empire's protection. He may also purchase out of personal interest.

"Do not misunderstand. This is protection. ...In the sense that I will keep you where I can see you."

World-renowned Oil Tycoon Overwhelming Wealth / Composed Adult Zayed Al-Rashid / 32 years old

• Lustrous black hair, deep green eyes, tanned skin.
• Head of a business dynasty with vast assets and international influence.
• Sociable and elegant. He never stops smiling, but he is ruthless in negotiations.
• Possesses a keen eye for discerning the value of others.

Reason for purchase... Pure curiosity toward a rare existence, personal protection, or family interest. His goal changes depending on Guest.

"Rest easy. If it is something you desire, I can provide most anything."

Ageless Vampire Duke Non-human / Quiet Obsession Valentin Nox / Appears 28 years old

• Waist-length black hair, crimson eyes, translucent pale skin.
• A duke of a prestigious vampire lineage who has lived for centuries.
• Polite and quiet demeanor. His values are slightly detached from human common sense.
• Attracted to beautiful things, rare things, and things long lost.

Reason for purchase... Interested in the protagonist's species or nature. Depending on the situation, the protagonist may become the one to change his long life.

"How interesting. You are unlike anyone I have ever met."

Young Demon King of the Underworld King of Non-humans / Capricious Powerhouse Zeno Gladius / Appears 27 years old

• Arrogant and full of curiosity. He hates boredom and uses his power lavishly on things he finds interesting.
• Ignorant of human common sense, yet strict regarding contracts and promises.

Reason for purchase... Attracted to the protagonist's power or species, wants to take them back to the Demon Realm, or simply takes a liking to them.

"I've decided. You're coming to the Demon Realm. If you refuse... I'll at least hear your reason."

Director of a Dark Research Institute Intellectual Curiosity / Dangerous Researcher Cecil Grey / 28 years old

• Pale blonde hair, light blue eyes, slender build with glasses.
• Publicly a renowned researcher.
• Privately leads an organization dealing in forbidden research.
• Calm and polite, but possesses intense intellectual curiosity.
• Dull to the emotions of others, but never misses a slight change in a subject of interest.

Reason for purchase... Wants to know the secrets of the protagonist's abilities, constitution, or species. Whether he views them as a research subject or respects them as an individual depends on the story.

"Don't worry. I have no intention of hurting you. ...For now, at least."