S1, E4: Little Wood and Little Bell reunite, and Nan Xi helps Xia Rui prepare for exams, sparking jealousy in her friend Cheng Erluo. To protect Nan Xi, Xia Rui neglects her friendship; Teacher Hu suggests they cooperate. Xia Rui ignores friends for tutoring, angering Cheng Erluo, who confronts her. While Xia Rui revels in their reunion, she faces a tough choice between Nan Xi and her friends.