This story is a love and hate relationship between two girls and two boys, Kim Myung Soo and Park Ji Yeon, and Tiffany Hwang and Jang Wooyoung. Both have different past and different characteristics. Having so much trouble with each other by their sides, all of them got pissed all the time. Each characteristics makes a change on how they will socialize with others and will make better way on getting to know each other.

    Tiffany Hwang, who was a daughter of a rich family, decided to live on her own because of family reasons. She decided to live with her best friend, Park Ji Yeon, in an apartment. Park Ji Yeon, on the other hand, was also a daughter of a rich family and was the heiress of their company but decided to live on her own since her parents are always outside the country because of work. They both decided to go at the same school where thair apartment was near at. They didn't tell anybody about their status since they wanted to be treated normally. They didn'y want to be treated in a so-speecial wayjust because of their status and their money.

     Jang Wooyoung, who was adopted by a Canadian citizen, was a half Korean and half Canadian. His true father lives at Korea and his mother, who was aCanadian passed away. He was still at Canada because of his om who adopted him. Even though she wasn't his real mom, he still treat her like his own. He knew that his father lives at Korea and decided to meet him since he knew that his father was looking for him. His best ffiend, Kim Myung Soo, decided to go and follow him. Kim Myung soo, who preffered to be called L, was a son of a rich family that owned a compay in Canada as well in Korea. Since he was Wooyoung's best friend, he decided to go and follow him at Seoul even though he knew he'll left his family behind. He wants to experience a new nature in a way people will not care about their status so he thinks that going with his best friend was a good opportunity for him.

     Wooyoung and L transferred in Seoul University, a well-known school, where Ji Yeon and Tiffany were studying. Will it be LOVE that will change each other's life? Or will it be HATE that will bring destruction to each other's heart?