Looking for K-Drama with forced marriage or rich guy/poor girl

Marriage not Dating, 

I answered to a similar question here, so that may help you.

However, none of the following three have female leads that are forced to stay with the male leads because they're poor. It's more because the male lead is in love/attracted and makes her stay with him against her will, often by threatening her relatives/friends because he's powerful and wealthy.

- Lady & Liar has rich guy/poor girl theme AND forced marriage (well technically, engagement) BUT memory loss! It's not so bad because the story actually centers around that, so it's not random last minute amnesia 
- Sealed With a Kiss has rich guy/poor girl theme, and the male lead forces the female lead to stay with him, but without marrying her
- Cruel Romance has rich guy/poor girl theme, and he falls in love very soon and is very forceful, but he doesn't force her to marry him 

Thai Full House. Amazing, truly.

I LOVE CONTRACT MARRIAGES/FORCED TO BE TOGETHER DRAMAS!!!

Have you watched 1% of Anything? The original version was aired in 2003, starring Kang Dong Won (one of his TWO dramas he ever acted in). The remake is currently airing, starring Ha Suk Jin! It is about a guy who is required to marry a lady to get his inheritance so they had a contract to date for 10 months. The guy is a chaebol and the lady is not very rich. Fits your description perfectly!

9 Ends 2 Outs is amazing as well. It is less of contracted marriage... but they were best friends and they were 'cohabiting'. In my very very very honest opinion, I think it is better than In Time With You (the Taiwan version) even though the cinematography might not be as good because this drama depicted the dilemmas of best friends turned lovers very well.

It's Okay, Daddy's Love has a part about contracted marriage as well but they aren't the main lead... the guy is a chaebol and the lady is forced to marry him because her dad ran into some trouble and they ended up owing lots of money.

Dandelion Family (aka Blossoms Sisters) has a side couple with contracted marriage as well. I was fast forwarding the whole drama to only their parts but I have yet to finish. I plan to watch every single episode when my semester ends.

Drunken to Love You (Taiwan Drama) which was written by the same scriptwriter who wrote Fated to Love You. I did not watch the drama but I know it's about contracted marriage as well because I could not feel the chemistry between the main couple (it's just me because my OTP ended up as the second male lead loving the main female lead).

High Society has both a rich male + poor female and a rich female + poor male couple. The families of the rich characters also seem to push towards marriage a lot (setting up dates etc).

edit: oh.. i just saw this thread was from a year ago so i doubt this is still an ongoing search haha. oh well it might help anyone looking for similar stuff :)

Check this artcle

I also recommend Thai Full house, even do it wasn't a forced marriage but they did have to get married.

my woman.. it was so awful i couldnt stand it.. it was like getting punched in the stomach..   It wasnt a bad drama, but you have to watch it to see what i mean.