Any shows where the male lead is in love with his brother's ex who is the female lead? Them falling for each other is frowned up by the male lead's brother and family. 

There is a thai lakorn called Khun Mae Suam Roy that has a similar premise. It's actually a twin-switch but in essence, the male lead thinks the person he is falling in love with is his deceased brother's wife and nobody in his family is supportive. It is also an excellently made drama and I highly recommend it! 

 Hanah:

There is a thai lakorn called Khun Mae Suam Roy that has a similar premise. It's actually a twin-switch but in essence, the male lead thinks the person he is falling in love with is his deceased brother's wife and nobody in his family is supportive. It is also an excellently made drama and I highly recommend it! 

Thanks.

Khun Mae Suam Roy is really good. I am watching it now. I would also add

A Love to Kill- although it is an older one, it is really good. Be prepared to cry.