Zheng () is a girl with a tragic life experience. Her parents divorced when she was a child, and she lived with her father. Unexpectedly, her father died suddenly, so she had to leave the small city where she lived and go to Seoul to take refuge in her mother. Han Jing never thought that there was another world waiting for her in Seoul, which she was not familiar with. There is an all-powerful figure in the high school where Han Jing transferred. His name is Ban Haiyuan (decorated by Xuan). He gained prestige with an iron fist and won the girls' crowding round with his handsomeness. Ban Haiyuan has a sworn enemy, that is, another high school's "trump card" Zheng Taicheng (Jiang Dongyuan), who is tall and handsome and loves to fight.

Han Jing's life in Seoul began, and she was greeted not by bright sunshine, but by depressing news. Missing his boyfriend day and night was robbed by his best girlfriend. Han Jing's sister Doreen (Ta-Hye Jeong) feels wronged for her sister and decides to introduce Ban Haiyuan, the most admired girl in the school, to Han Jing. Han Jing, who thought her sister was in trouble, ran to the game room to escape the embarrassment of meeting, but met Zheng Taicheng here. Who would have thought that their meeting would bring much change to each other's lives! Although Han Jing is just an ordinary girl with no outstanding beauty, prominent background and even a little rustic, Haiyuan and Tae-sung fell in love with her at first sight. Two boys, originally sworn enemies, were newly "upgraded" to rival in love and launched a fierce battle. One is Hai Yuan, who is overbearing and infatuated, and the other is Tai Cheng, who is equally infatuated and naive. Han Jing didn't know how to choose, so he was caught in the middle and tried to find a way not to hurt two people. At this point, Tai Cheng chose to leave, full of infatuation and injustice. ...

After Tae-sung left, Han Jing and Haiyuan finally learned Tae-sung's inner secret and fell into endless sadness. After many twists and turns, will Tae-sung come back? Can Haiyuan and Han Jing still be happy?