Jiyong is a infamous male student in uni, everyone know him. Not only because of his grades, but also his love life. He is known to have a bunch of ex-es, he dated 4 girls a year at least. Eventhough his reputation is somewhat bad, there are still many girls that lined up to be his next girlfriend. His bestfriend is Seunghyun, Youngbae, Daesung, and Seungri. The 5 guy is always the top 5 most wanted male in uni.

Chaerin is an ordinary female student in uni. She has so many friends because of her kind heart and 3 bestfriend, Dara, Bom, and Minzy. She always in top 3 student in uni, but always behind Youngbae and Minzy. She has a little sister, and lived with her parents. Her house is in front of Jiyong's house but they never bump into each other in their neighborhood. But their parents is always been bestfriend since the first day Chaerin and her family move from Japan.

When fate has decided for them to meet, fate also has the power to separate them.