Break Up

The first volume is a prelude to the next 10 volumes that is titled Kiss. This series is a prelude to the relationship between Sakisasa and Hatori, their ups and downs. What sets this series apart is the fact that each situation is told twice - from the girl's POV and then the guy's POV. That hence makes it a very interesting read and provides the reader with the chance to look at the two different sides of a coin.