Kai knew that she loved him. She wasn't happy. She didn't want this. He tried anyway. It didn't work out. He let her go. Some loves just don't work out.

They were ex lovers. She moved on, finding a boyfriend. It was just fine. Until she met him again. While she was spying on her boyfriend who was on the blind date. What will happen when past and present meet each other? What will Krystal do? What will she choose? Staying with her love from the past, or find something in herself to let in this new emotions thanks to certain someone?

She didn't really know him. He was there at the right moment so she took the adventage of it not thinking about what will happen. And that's how she ended up falling in love, finding the man who wasn't perfect, but at the same time he was.