They first met in a drizzling Jiangnan town. At that time, they were just strangers to each other, but time still created opportunities for them to get acquainted. Their separation was also in the small town they gradually became familiar with. It was still a rainy day. However, the rain at the time of separation was so violent and hit people's hearts so directly that it made people a little scared. Their separation was so decisive, just like that rain. Many years later, they met in another city. Although they had memories of each other in their hearts, in real life, they were strangers to each other...