Zhao Xin is a laboratory technician and has been working for four years after graduating from college. One time, she and her boyfriend Liang Bo went to a friend's shop for dinner and met her boyfriend's sister, Yan Xi. Yan Xi was a junior student and had also signed a contract with a publishing house. The slightly lonely and unruly Yan Xi's eyes aroused a faint curiosity in Zhao's heart, and this curiosity also pulled the two of them deeply into one storm after another...