Do you know this drama?

Hello!!!
One of my friend suggested me a drama but she doesn't remember the name. She thinks it was Korean or Japanese. I liked to plot a lot and I really want to watch it. Could you help me to find what it is?
Plot.
 A Mother has two beautiful daughters. She is poor woman she goes houses for cleaning. She wants a better life for herself she sees her beautiful daughter  as a ticket to a glamourus rich life. She wants them to become famous or marry with rich guys. Her oldest daughter doesn't want to and she works in a ordinary job. Mother pushes her younger daughter to become  famous. She takes her to auditions and casting. Youngest daughter is beautiful but  stupid.
Mother starts working in a job in a rich family's mansion. The rich family has their own issues. Rich Families father has two sons from different mothers I assume they both kinda live together.(I'm not sure) He also has 3 daughters from the first wife. She has one son from the wife and one from the mistress. Sons don't like each other. Youngest one is a jerk. She works with older daughter . Older daughter has crush on him. One day oldest son wants to find a face for their new advertisement. Mother says her  daughter is really beautiful and could work for him. Guys jokes and says she have to sleep with him first. Mother catches her daughter with  a guy in bed a day prior and than says to this guys she could do whatever he wants. An guy gives a hotel room to the mom. Oldest daughter finds about this and after some things she goes to sleep with him instead of her sister (she was trying to save her sister).  She founds older son in the room instead of younger son Younger son tricked his brother in to this thing. Older son insults the girl and send her away without touching her. (Later they will fall in love I guess) After some twisted things younger daughter marries with the rich father of the mansion (his wife dies before that). Mother wants to live in mansion through the whole  story.
Do you know this drama? :D

Yeah that's what I thought I love messed up things in dramas  :D

hahahaha! @TheGrowlingStomach

I'm interested in seeing where this search goes and whether or not the actual drama is anything like the description.

@TheGrowlingStomach Ahahah That's why I am searching it. It will be my new quilty pleasure! @Naksken she decribed it in detail but it looks like noone knows it :/

Oh my what a story HAHAHA