They are both sitting on the tree house, both are exhausted. It was Chanyeol's birthday and they celebrated it with their friends. Though it wasn't agreed upon by both anyone can tell that they are the best of friends in the group. They go to school together, go home together, they did almost everything together, it was like they're really siblings.
However up to this point Chanyeol expected Sulli to give him her gift, he was a bit excited to know what it was.