Fei Fei lies and uses Senior Shen Ze as the decoy boyfriend, trying to get a response out of Luo Yan. He remains stoic and she and Fang Li give up. However, he is disturbed by Shen Ze and thinks that he is dangerous. Shen Ze recalls how Luo Yan had taken his place as the most promising student at their highschool. Fang Li tells him how he had ruined her school life by making her translate comics and get snacks for him from far away. She also confesses that she used him as a fake boyfriend to get to know Luo Yan's feelings. (Source: MyDramaList)