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 hatred for him only grows. Over time, however, Xue Tong discovers Teacher Mu’s true character and comes to secretly love him. (Source: CdramaBase) ~~ Adapted from the novel “Exclusive Memory” (独家记忆) by Mu Fu Sheng (木浮生).