ユージン・ベルクマン

The prince's personal knight.

He's quiet, blunt, and has an unapproachable aura to him. He's aware of this, so when the protagonist is unable to speak to him on their first encounter, he misunderstands this as her being so intimidated by him that she can't speak, leaving him feeling hurt. He's a bit stubborn, but has the sincerity to apologize once the misunderstanding is cleared.

He loves reading and can read through mountains of books in one sitting. He was initially uncomfortable around women, but his outlook is gradually changing due to the protagonist's slightly unconventional nature.