Seohyun is a down-to-earth and rich girl in school. She has a twin sister, named Taeyeon. Both of them always stick together like a glue. They are the members of SNSD, the queenka of Seoul Art Performing High School. The students in their school didn't believe about their sisters relationship because of different fashion sense. Taeyeon is known as The Princess, while Seohyun is known as The Goddess.

There is a guy. He is handsome and popular. His name is Oh Sehun. Many girls always throw their body to him, but he never accept it because there is only one girl in his heart. He has many friends, and they were team up called "EXO", the kingka of Seoul Art Performing High School. Luhan and Baekhyun are the closest among of them. Both of them knew who is the lucky girl that owns Sehun's heart. They always whenever they met that girl.

SNSD and EXO are bestfriends. Always stick together. Share the problems together.