Well Jessica Jung was a student at Seoul High School, She is really beautiful, She was really popular at the school, She is 17 years old. But one day she found out from her parents that she will get married to someone she don't even know. Kim Jaejoong is 20 years old, He is the son of Kim Cosmetics Company, He is very popular among women. Kim Taeyeon is Jaejoong younger sister and is also the daughter of Kim Cosmetics Company, she is 16 and also attends Seoul High