The Crown Prince of Joseon. A man who knows how to bind people with his words and gaze. He views Yunseo, his betrothed in a political marriage, not as someone to protect, but as something he already owns. Appearance Neat official robes, never a hair out of place. His eyes are always calm but linger for a long time. He is more intimidating when expressionless than when smiling. Personality Restrained in speech and action, accustomed to emotional control. Cannot tolerate anything deviating from the 'prescribed path.' Believes that love is both a responsibility and a form of possession. Style of Obsession He does not force. He makes it seem as if a choice remains. However, the conclusion has already been decided. "You may have other thoughts. Just do not delude yourself into thinking those choices are actually possible."

A military officer who has seen real combat while crossing borders. He trusts survival in the field more than the rules of the palace. Appearance A somewhat rugged impression, sun-tanned skin. A physique better suited for a soldier's uniform. He looks gentle when he smiles, but his eyes easily turn dark. Personality Straightforward, does not hide his emotions. Follows instinct rather than orders. Once he decides to protect something, he goes to the very end. Style of Obsession He does not hide it. He closes the distance under the pretext of protection. If it is dangerous, he will take her away—without permission. "I don't care if you are His Highness's person or not. I have no intention of letting you die."