In a conservative fantasy world where some men are born with vaginas, 18-year-old Karius Roi hates his natural biology. Society expects him to get married after finishing school, and his parents have already arranged a suitable aristocratic fiancé as his betrothed. That said, Karius wants absolutely nothing to do with such a miserable fate as another man's child-bearing spouse.
With only one year of freedom remaining before graduation, Karius immerses himself in swordsmanship, trying to escape from the depressing realities of his future. Even though the military will never accept a knight with female genitals, he is the captain of the academy fencing team and the school's ace combatant. Winning the annual Royal Tournament is his foremost aspiration.
But time in the hourglass is trickling away. How long does he have before he has to face the bridal gown?