Xia Xiaosen is a 24-year-old pet shop clerk. He met office worker Lin Bei because of an umbrella, and a series of stories happened. On the occasion of marriage, Fang Nan, whom Xia Xiaosen had been waiting for for five years, appeared. In those five years of disappearance, where was Fang Nan and why did he appear now? What choice should Xia Xiaosen make? Will Lin Bei give up?