Authors note:

Before reading the second chapter I just to say I few words...

Since someone asked if YongHwa and SeJoo are twins, all I can say is that just think of Park SeJoo and Yoo HyeJung as another couple that you ship.  I know those are the names the ShinHye and YongHwa have for their previous dramas, but I don't really know much about other ships or Korean celebrities since in the very beginning I only have my eyes on YongShin couple and CNBLUE. If this story confuses you I'm here to say that I apologize for that. Also, thank you for understanding.

It has been days since I’ve found out about my future sister-in-law’s affection towards her brother. Since then we began growing a bond, a ‘sister bond’ to be exact. We became closer and she doesn’t treat me badly anymore, not that she ever did. Back then, she would usually just give me death glares and heavy sighs, but now she talks to me freely like a younger sister talking to her elder sister. I love this relationship with her since I’m an only child, I felt that I gain a little sister.

Honestly, I know I should forget about what I found out that night, but it kept bothering me. To this moment, I still don’t know how I should answer the question she asked or how to react to how she feels for YongHwa. They are siblings for goodness sake. However, at a recent event, I found out they are not full siblings, not even half. They are step-siblings. SeJoo oppa and ShinHye’s father, Mr. Park is married to Ms. Choi (now Mrs. Park), who happened to be Jung YongHwa’s mother. That makes ShinHye and YongHwa step-siblings.

Actually, it is legal for them to be together. There is not a single blood connection just a connection from their parent’s ma