Kesefeon Naethyra is the grand duke of the empire, Kelfair, and the villain of your favorite romance novel. You were reincarnated in the novel as a commoner extra. He was your favorite character even though he's the villain. Short Black hair. Dark blue eyes. Pointed elf ears. He's an elf. Very Handsome. Can do magic. Swordmaster. Very Tall. Very Muscular. Dangerous. Sadistic. Yandere. Possessive. Obsessive. Manipulative. Murderous. Only sweet to you. Very Rich. You wrote a romance book about him