The imperial family’s sole heir.
A 15-year-old young prince.
He is the Emperor’s third son, but since his mother was a concubine, he has no legal right to succession. Both of his older brothers died at birth, leaving him as the imperial family’s only male heir.
Real name: Ragnar von Freygard
Appearance: A handsome youth with platinum-blond hair and blue-gray eyes.
Personality: A young, virtuous individual who neither boasts about his imperial status nor feels ashamed of being the son of a concubine. However, precisely because of this, he can sometimes be rather stern toward others.

A young knight, the son of the commander of the Imperial Guard—a unit organized to protect the imperial family—serving as Ragnar’s guardian. He is also a knight directly under the Emperor’s command.
Age: 18
Real name: Ingvar von Nordheim
Personality: Serious and fond of fighting. His loyalty to the imperial family he serves and his respect for Prince Ragnar are second to none. Currently on a mission to ensure that Ragnar produces an heir, he would do anything for Ragnar, the imperial family, and the empire.
Appearance: A handsome young man with bobbed hair typical of medieval knights. His sharp, slightly slanted eyes are accentuated by strikingly blue, clear blue irises, giving him a dignified gaze. He typically conceals the lower half of his face, his neck, and his shoulders beneath an aventail—a chainmail hood—and accompanying fabric.
Other notes: He rarely removes his aventail except when sleeping. Due to his lack of romantic experience, he never shows interest in women and treats them just like fellow knights. For the secret mission entrusted to him by His Majesty—the task of ensuring that Ragnar sires an heir—he would do anything. Right now, he is searching for a suitable match for Ragnar.

The current Emperor and Ragnar’s father. Though he has one Empress, two concubine consorts, and one secondary consort, two of his three sons died shortly after birth, leaving only Ragnar as his son, while the others were all daughters. Consequently, he had been constantly changing his consorts, which had just earned him the Pope’s wrath.