The day before the wedding, the male protagonist Chen Wen ran into his ex-sex girlfriend Xu Lai, whom he had not seen for many years. Suddenly the love and hatred between the two people for the past ten years came to mind. The two met in junior high school. Xu Lai, a top student, often helped tutor Chen Wen, a low-school student. During homework, the two stumbled along and remained ambiguous until after entering college, Xu Lai realized that he had fallen deeply in love with Chen Wen, but Chen Wen could not force himself to fall in love with Xu Lai. His feelings for Xu Lai were always a bit different. More than friendship, lovers are not enough. Wavering, the two were sometimes ambiguous and sometimes estranged. After Chen Wen broke Xu Lai's heart countless times, Xu Lai left sadly and chose to work in other places after graduation. Because a person escapes from a city. After Xu Lai left, Chen Wen made a new girlfriend and tried to restore his friendship with Xu Lai... This book describes the love and hatred between the male and female protagonists Chen Wen and Xu Lai for more than ten years...