Age difference
The heroine went overseas to work as a trainee alone and was ostracized, then returned to China and started anew. He has an independent and tenacious personality, but longs for stable and long-term companionship.
The male protagonist comes from an aristocratic family and started his business from the bottom. He is calm and considerate in his actions. He gradually gets to know the female protagonist since he was a child, and develops a different kind of feeling for her step by step.
