Namjoon and Jungkook were at the cafe when thunder sounded the room. They didn't notice anyone else in there. It was a rainy day. They broke out into to song not noticing a girl at the window crying while watching the rain fall down. The girl had just got news that her beloved grandmother passed away. Namjoon quit singing and heard the silent whimpers of crying. He followed the sound to see a girl hugging her knees looking out the window. He signaled Jungkook over. What they both failed to realize is the song they were singing was her grandmother's favorite song.