Exo is a popular boy group in South Korea and It's popularity is getting bigger everyday. *what will happen if his long lost sister is one of his fans? *What will happen to Exo? *What will happen to his sister if once they knew about it *What will happen to Sehun and his life now? ㅡㅡㅡㅡㅡㅡㅡㅡ Cover made by myself