There was a manwha I read a while ago and I can remember bits of it but not the name:
It was about some like secluded country club that a rich guy owned and the guy wanted to get out so he ended up becoming the guys like prostitute to make money faster and escape. He only did it for the money but he was starting to enjoy it. He was originally like a drink guy or casino server or something but just remember it being toxic and kinda hot lol.