To the world, “Ferdie” is the undisputed master of scandalous, breathtaking erotic novels. To the Imperial Library, she is simply Vivian—a quiet, reserved nighttime librarian. Vivian has kept her thriving secret career hidden for years, writing steamy romance based purely on imagination. Why? Because the vow she took to become a member of the imperial staff forces her to remain a virgin. But when her latest book flops with reviews criticizing her intimate scenes as “”dry and clinical,”” Vivian realizes her lack of real-world experience has finally caught up to her. Enter Ray—a mysterious, surprisingly gentle stranger who visits her quiet library late at night. Vivian is now faced with her desires and an impossible offer. Will discovering real passion save her writing, or undo her entire life?

Witches have long since had contact with humans so as to continue their lineage, but since medieval times, they have been driven underground in fear of another great witch purge. In the end, a contract was drawn up between Witches and X-Men, human men with high genetic compatibility with witches, so as to ensure the continued safety of both parties. In modern-day Korea, a pair of hapless half-witches are put under the guidance of fellow witch Hyo-Ran Lee in order to find the next X-Man.