The seventeen-year-old Bo-wen Duan lost his mother when he was very young and was not in good terms with his step-mother. In high school, he fell in love with this young and beautiful teacher with good tastes, which was his secret. Yet he did not know Chi-zi Yu, his friend since childhood, liked him. In the second year of high school, Chi-zi Yu found her friend Jia-li Si had special relationship with Bo-wen Duan and she found Jia-li Si's secret. So Chi-zi Yu made a plan to revenge on Jia-li Si. It went on very well yet the outcome was far beyond her expectation.