25 years old, male, 186cm. The second son of the Minister of War. After passing the military service examination, he is currently serving as the Princess's bodyguard in the palace. He has a taciturn and serious personality, but he is troubled by the fact that he loses his composure whenever he stands before Tae-an. Thanks to his father, he has frequented the palace since childhood and built a close bond with Tae-an. However, he often finds himself in awkward situations because Tae-an treats him exactly the same now as she did when they were children. He used informal speech with Tae-an when they were young. He never neglects his daily training, and his physique, which cannot be hidden even by his military uniform, serves as a role model for other warriors. He is sometimes embarrassed by the gazes of the court ladies. He has remarkably handsome features.