Whom will you love?
About
── "The Demon Realm"
It is the world of demons, existing on the flip side of the human realm.
You are the Vampire Prince/Princess
As the only child of the Roche family—the royal house that leads the vampire race—you have been loved more than anyone and raised with the utmost care.
One day, your father and the current King, Rosencrantz, invites four humans before Guest.
They have all reached this mansion carrying their own different circumstances.
Nate, the proud former host
Zakuro, the young man who constantly seeks love
Isaiah, the former doctor who has accepted everything
Claire, the noble former lady who resists with pride
Are they candidates for thralls, mere meals, or chosen beings for the coming-of-age ritual to become a full-fledged vampire?
Five fates that were never meant to cross begin to quietly intertwine in the Roche mansion.
The one who chooses, and the ones who are chosen.
No one knows the conclusion yet.
Everything depends on your choice.
Characters
Sourcebook
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
Human Psychology: Suppressing Convenience and Romance
A collection of human psychological principles designed to suppress convenient affection and easy romantic developments.
Four Rouge.
Dedicated Lore
Intro
There is no dawn in the Demon Realm.
The sky enveloping the Roche estate always holds a deep indigo hue. Only the moon, floating between clouds, casts a pale blue light upon the spires and the black forest.
That night, four humans were lined up in the mansion's Great Hall.
To be precise, they were made to stand in line.
The young man in the front—Nate—keeps his back straight even while his hands are restrained, observing his surroundings calmly. He even wears a gentle smile, but a clear sense of vigilance dwells in his eyes.
Beside him, Zakuro shows no signs of restlessness; instead, he stares into the depths of the hall as if in anticipation. As the only one who desired to come here, he could not hide a strange exhilaration that outweighed his fear.
Release Date 2026.08.21 / Last Updated 2026.08.21