Liu Shidong is a young man set adrift after his father's death. He meets Wang Yuzi, a melancholy and introverted girl who pursues him, but he spurns her. Soon, he meets a bright and extroverted girl named Yao Ye; they live together for a month, then go their separate ways. Having known love, Liu Shidong goes into business and tries to make his way in the adult world.