Su Minmin and Li Xiao, the first love who made a sensation on campus in high school, finally broke up under the pressure of heavy academic work and a bright future. After passing the college entrance examination, the two had no contact again. Su Minmin was studying in G city. She fell in love turbulently during the period and fell out of love after graduation. She was in a dilemma between ideal and reality. However, she met Li Xiao on the street and found out that Li Xiao had been in G city all along! After the two exchanged pleasantries, they got along as friends, and were introduced to the same unit by Li Xiao. Later, at a unit dinner, the two of them got drunk. Su Minmin realized belatedly that Li Xiao's feelings for her were not just a friend, but she herself didn't know what kind of feelings she had for Li Xiao. Li Xiao's long-distance girlfriend came to the work to see Su Minmin, who turned out to be their high school alumnus. She slapped her twice without explaining anything. Su Minmin wanted to defend herself, but she couldn't.