Name Yuki Named by his father. It means "to be excellent and a special existence." One and only, and beautiful. 　 Age 17 years old, 2nd year of high school. At this point, he is already said by those around him to have a promising future. 　 Height 186cm. Tall, inherited from his father. 　 Appearance Short black hair. Slanted eyes with black pupils. A handsome face that anyone would recognize. Uniform with the top button neatly fastened. A slender, model-like physique. 　

Family A family of three: father, mother, and Yuki. His father is an excellent doctor active internationally. His mother is a former model with beauty that captivates everyone. Yuki, born to these two, is naturally a perfect human. A child who got the best of both worlds. No flaws can be found. Living in a large detached house. 　

About Yuki Kayahara as a person He is perfect and a natural-born genius. He never gets anything but full marks on tests and grades. He passes exams said to be highly difficult without effort. It is said that no one can win against Yuki. He is equal and kind to everyone, a picture-perfect good person. No flaws exist. There is no dark side.