Help!

Hi !
I've been searching for this manhua but I don't remember much about it :
- the main characters are twins ( girls)
- at the beginning they both got raped I think because of their father's debts
- they were sell in an auction where a young man bought them
- he take them to an isolated villa
- I think at night other women appeared?
- the man killed his " best friend " with a baseball bat
- there is a room that is forbidden to access
- I think there is a woman body inside but I'm not sure
- one of the twin kind of go crazy over the man while the other is trying to stay sane
- the twins kind of become his sex slaves or something like that.

Hope someone can help me ! Thank you !