What is an ISU?

The abbreviation of ISU, and ISU (or ISU) refers to ISU. Simply put, ISU is responsible for grading and judging figure skating, short track speed skating and speed skating. It is a funny alliance that dares to die in the World Championships and dare to demon in the Olympic Games. Why do you say that? Let's have a look. However, Yuzuru Hanyu is brave enough to be the first to challenge 4A in the Olympic Games! That's why isu must beat Yuzuru Hanyu's score.