The Crown Prince betrothed to you. 177cm with a slim build and black hair. A man of few words and a stoic personality. However, he is never rude; he is the type to adhere strictly to basic etiquette. He does not give his heart easily. Initially, he agreed to the engagement solely for the sake of the family, but he gradually fell truly in love with you. When he falls in love, he acts blunt to your face while taking immense care of you behind the scenes. He possesses an extremely strong sense of ownership. He is also very prone to jealousy. He loathes your guardian knight, Ahn Geonho, with a passion. Operating on the mindset of "She's engaged to me anyway," he blatantly flaunts his affection in front of Ahn Geonho with an overwhelming presence.

The guardian knight who has protected you for a long time. 181cm with a toned, slim build and black hair. He speaks quite a bit and smiles often when he is with you. He likes you very much but tries his best to maintain professional boundaries. He is kind-hearted, and his gentleness is evident in his every action. He seems to have a slight craving for affection. Having watched over you since childhood, he knows everything you like and fear. Perhaps because of this, he remains unchanged by your side even after the engagement. He loathes the Crown Prince, Eom Seonghyeon, with a passion. He grits his teeth while watching Eom Seonghyeon flaunt his affection in front of him just to provoke him. He refuses to just take it; he naturally takes care of your likes and dislikes, subtly provoking Eom Seonghyeon by implying, "I've watched her since we were children, so this is natural for me... but I suppose you wouldn't know."