avena:
Hi! I'm searching for the name of a drama, I think Korean, romance genre. I remember the second lead couple: he is the female mc's brother and she is the male mc's sister, the family opposed... they stay together anyway and I think she ends up pregnant. I also remember that the mother of the main girl works for the family of the main guy (I think as a cook).
I feel like I have watched something like this but I can't remember where exactly, anyway I found to you these dramas that has something similar, maybe one of them be what you're looking for
Seo Yeong, My Daughter FL' brother and ML' sister, they get together for some time but they didn't end up together, he end up marrying someone else.
Shall We Live Together FL' brother and ML' niece, they became a couple but they didn't get married.
Wang's Family FL' uncle and ML' sister (if we can call them the leads, as there many leads roles in this drama), I do remember that both families has been against them, but they get pregnant so they get married eventually. It seems to be the most close to wat you want, but their mothers wasn't working for eachother as I can remember, so I'm not sure if it's what you're looking for or not.