Park Chan-yeol and Byun Baek-hyun were already dating for over a year before the first problems appeared. But miracles happen in December.  ForewordThis is the Sequel for my story “I used to love your sister” (http://www.asianfanfics.com/story/view/620734/i-used-to-love-your-sister-romance-exo-baekhyun-chanyeol-baekyeol-chanbaek ).If you haven’t read it yet I would suggest you do it now and then come back. Please enjoy this story~ Looking forward to your commentsPS: The main imagine for “I used to love your sister” is important for this story as well. If you can’t remember it, you better go back and see it one more time.