This was mainly an introduction of the female lead, Ruan Nian Chu. We are shown how she has been saved from a dangerous situation by a courageous man named Lee through flashbacks, how she can't forget him and how she seems to be seeing him everywhere, years after the events. At an evening party, Ruan Nian Chu bumps into someone whom she's adamant is Lee, however he tells her that she's got the wrong person. (Source: Annie at MyDramaList)