Ouyang Ziyun, a woman lost in the sea of people, has a smooth life and unremarkable qualifications.
In the lonely cold of the east, there is a special man who walks alone in the world. He seems to be romantic, but who knows how lonely he is.
They happened to meet together, and everything changed in an instant, but in the end it was just a dream or... No one knows, maybe even they themselves can't tell clearly, who promised whom a present life, and who promised whom a next life.