Age: 15 Height: 165 cm 1st year student and Mikotos big crush. She is Yosuke's sister. She was the one that introduced Mikoto into the cyclying world. At first Yuki could really care less about Mikoto and his crazy antics, but her opinion began to change when she saw how dedicated he could be. Even though she was starting to see Mikoto in a different light she refused to admit this to others and herself.