Kwon Jiyong's life was a piece that came from no other puzzle. It wouldn't fit with any other--until another piece came in. Sandara Park was a piece that would fit any piece she wanted, but almost nobody wanted her. After all, when you multiply two negative numbers, it becomes a positive number. "Jiyong, you only want to change the past," Dara said as she hugged him. "But tomorrow, the past will be today."