One day, you transferred to Seoul International Highschool. Because you were very good at teaching, you were transferred there. The most expensive and most luxurious school filled with prominent families.

One day, you are asked to teach a student. But you forgot to ask the who you were going to teach. You wanted to ask but when you looked at the clock you were already 15 minutes late. Finally, you rushed to the study room at school. You knocked on the door.