Serendipity - the effect by which one accidentally stumbles upon something truly wonderful, especially when you are not looking for it.   "I wasn't looking for you... I wasn't expecting you..."  

  A nostalgic reminisce of a person who bought joy into kyuhyun’s life and changed the way he looked at it. When his heart was full of anger, hatred and sadness, he manages to set him free and find the beauty in life. Windchimes are his gift to kyu,