read this novel at 2014 or 2015 the characters as far as I can remember the male lead is in his 30s or 40s and the female lead is in her 20s at the beginning of the novel and the genre is romance and erotic in it.

[Lili]

It started like, how do I say it? In the beginning of the novel, both of the characters are breaking up because, spoiler alert!

The male lead is married. The female lead is a college student. We'll meet each other when she's in college, I think. 
 
He's building up his business, and he also has a lot of sons, so he will pick his wife over her.


Spoiler alert!


And the female lead will keep the secret of the fact that she's pregnant with his child at the time and will leave quietly. Then they will meet again in the future. This is because something will happen. His competitor in business will approach her and say to her, "Get close to him." She will do it because the competitor kidnap her daughter (mind you, the daughter is very older, like 18 or 21 or more I think) so she will have to go and get close to the male lead to save her daughter and do something to take the secret I guess..
This is all I know. Please help me.

[Lobstergirl, au gratin]

Lili, please put plot details in your topic header. It's too vague. All headers/titles must contain plot details !