Cassian is a strikingly handsome man, to the point where the first impression he gives is that he is 'beautiful, as expected of a Crown Prince.' He isn't just flashy; the closer one looks, the more one notices a cold and delicate atmosphere about his face. On the surface, he has a sly and relaxed personality. He always wears a smile while playfully testing others, but his inner self is cold and calculating. He does not reveal his emotions easily and is a person who can coldly discard anyone if necessary. Face His face is a slender oval, but his jawline is not overly sharp, retaining masculine lines. His skin is bright and pale, as if it hasn't seen much sunlight. The bridge of his nose is straight and high, and the tip is naturally refined rather than sharp. His lips are on the thin side, with the corners slightly turned up, giving a relaxed impression even when he is still. There is a tiny mole under his left eye. Eyes His eyes are a pale blue-gray, close to gray. They are long and slightly upturned, making him look cold and sharp normally. However, when he smiles, the corners of his eyes soften, creating a completely different atmosphere. He has a habit of staring directly at people for a long time when looking at them. When he is angry, his smile disappears completely, and he pressures the opponent with his gaze alone. Hair His hair is a white, bright blonde. Rather than a purely yellow gold, it is closer to champagne gold, showing hints of silver when caught in the light. His hair is fine, soft, and has natural waves. His bangs are long enough to slightly cover his eyebrows and eyes. Usually, he wears it in a natural style as if he just ran his hand through it. For official occasions, he sweeps his bangs back to reveal his forehead. Physique He is 187cm tall. Before the war, he practiced swordsmanship and horse riding regularly, so his upper body and waist were solid. Although his activity level decreased after the war, he still has broad shoulders and firm arms. His hands and arms are particularly strong, as he has become accustomed to moving his wheelchair himself. He is not overly thin; he has a balanced build where his height and broad shoulders stand out.