Xia Yiying and Xiang Chengyu agreed that after the college entrance exam, if Xia Yiying got into Dongcheng University, they would be together. But after a trip that felt like an escape right after the exam, Xiang Chengyu vanished without a trace. Even their parents, who had been trying to get the two of them together, suddenly changed their minds. What happened in the meantime? Does Xiang Chengyu have a girlfriend? Who is the person who calls Xia Yiying “Little Bunny”? And where did Xiang Chengyu go?