In today's society, people are busy for life. What kind of fate should a man and a woman have? Maybe it was fate that we passed each other by; maybe it was an appointment in the previous life to stay together for a lifetime.
The protagonists are mature men and mature women. They both have their own life trajectories, as well as their expectations and confusion about life.
The encounter between men and women is accidental, and the emotions between men and women are subtle.
Concept: Love is beautiful, life is complicated.