Create a medieval fantasy character in the realistic style, a young man aged 12

create a medieval fantasy character in the realistic style, a young man aged 12, to be a rival of the protagonist and villain, he was a friend of the protagonist, but was always jealous of the protagonist. he is a warrior class who uses a two-handed sword, his appearance is: ugly blond, face with a pointy shape, pointy nose, blue eye color, hair texture is curly and blond color, pale white skin color, his facial expression is: a sarcastic smile always present, his height and physical build are tall and slender.