Zeng Yifan fell in love with Yi Nuan for ten years because of a joke she made when she was a child, but he had to let her go.
Yi Han went to London to fulfill Yi Nuan's dream almost throughout his youth, even though she was no longer with him at that time.
It's not that Yi Nuan doesn't know Zeng Yifan's feelings, but she can't accept it, because love is a lifelong promise to her. She only wants him because she only loves him.
Easy to be cold and easy to warm, one cold and one warm, the fate is bound to suffer only Zeng Yifan, who has been waiting for her for ten years, and Qin Yifei, who is willing to accompany him to London to fulfill the dream of another girl.
From young to young to old, they hold each other's hands all the way down.