In 2002, Lin Wanxing, a freshman girl from a small southern town, met Shen Zhiyan, a freshman boy from Shanghai, on QQ. An online relationship that spanned thousands of miles, and after six years of separation and reunification, they agreed to stay together in 2010 if they were still single. However, the girl chose another marriage under the pressure of reality, but the boy never married. Many years later, the girl suddenly woke up from her unhappy marriage. After the divorce, she ran to Shanghai and finally reunited with the boy who had been waiting for her for thirteen years, fulfilling her late promise.
