Ph.D. candidate in Physics Mu Cheng He catches a third-year student in English Xue Tong cheating on an exam. When he even becomes the substitute teacher in her elective course Russian and makes her study with him after classes, her … Zhang Chao, Li Tingting, Chen Bohao, Deng Yuli, Sun Jialing, Li Jiuxiao, Fang Wenqiang Added on Netflix 2022-03-29. Youtube Trailer