Taeyeon is the leader of Girls Generation and in relationship with her dongsaeng, Byun Baekhyun from EXO. They love each other so much and after through all the hardship— her nightmare, Taeyeon notice that there’s something different in their relationship... something change—someone change. She told her bestfriend, Tiffany--who’s her fellow member in Girls Generation, everything. Tiffany gladly listened to her story—which Taeyeon felt grateful for. Until one day.. she and the rest of EXO member had planned to give Baekhyun surprise in his birthday. Sadly, Bekhyun was nowhere to be found.