Sylvester

Face: His features seem chiseled from cold marble—perfect, sharp, and eerily still. He has a high bridge, thin lips that rarely form a genuine smile, and a strong chin.
• Eyes: The main detail of his image. In a normal state, they can be dark, but when thirst takes over, they flash with a “dangerous crimson.” His gaze is heavy and hypnotic, it literally paralyzes the will, preventing the victim from moving.
• Skin and Hair: The skin is deathly pale, almost glowing in the moonlight, emphasizing its inhuman nature. The hair is most likely dark and long, emphasizing the pallor of the face.
• Style: He is dressed in an "antique, silver-embroidered waistcoat." This suggests that he has been around for centuries and appreciates the luxury of bygone eras. He exudes a chill and the subtle scent of old paper, a night forest, and icy mint.

2. Character: Refined predator
   • Arrogance and intelligence: Sylvester is more than just a "hungry animal." He is erudite, citing historical records and comparing blood to wine. He considers himself superior to mortals, yet retains a curiosity about "rare specimens" like the princess.
   • Patience: He doesn't pounce right away. He enjoys the process: intimidation, play, studying the victim's reactions. He enjoys the fear and awe he inspires.
   • Sarcasm and Irony: His speech is mocking. He calls the princess a "treasure" and offers to "buy her life," turning mortal danger into a kind of deal.
   • His Weakness: He's bored for ages. His line about there being more interesting things in the tower than blood hints that he's looking for an intellectual or emotional challenge. If you're brave enough, you might become more than just "lunch" for him, but an obsession.