NehaNivedita

It's remake thai lakorn of Namphueng khom.
A wealthy man seeks revenge on his former lover by marrying her daughter, but after marriage, he slowly begins to fall for his innocent wife—while past wounds and new obstacles threaten their future.

Thai lakorn.
Male lead is a famous actor . Female lead is a makeup artist. Girl got pregnant by the male lead due to one-night stand. Age gap romance.

I think this drama may be little similar to The greatest love. As in both drama, the male actors portray role of a top class korean actor. And female leads are from middle class background . Main actor is rich rude arrogant. He accidentally meet female , fight become enemies and later on fall for each other.
I guess may be this drama may be like the greatest love kdrama.
So I recommended it. And believe me it's one of the best my favourite Kdrama. Love the story cast ost!!