The horrid past!

Dara and Chanyeol met as friends when their parents were best friends. One day they had a huge party and their parents got on the car and went somewhere as they stayed home. They was devastated to here that their parents had a severe car crash and had all died, so they stayed with Chanyeol's uncle together. When they were older they moved into their own house and that's when the love started. All of their friends are trying to make these sibling like friends together. Would they succeed? Or will their memories tear them apart forever?!