This summer I have been in love with Xie Xu for 3 years and separated for 7 years. But no matter how time washes away, this summer will never forget this love that does not tolerate worldliness, and is a prisoner of love. In this circle, when you get older, you get married, have children, inherit the family business, and hang around all day long; there are also people who can't make do with it. Once that person appears, knows you, knows each other, and falls in love with you, you can't forget him in the world. That person makes it impossible for you to make do with him. Seven years later, when a man similar to this summer appears in front of Xie Xu, what will happen to them? And why is this man here?