Any where the female lead was a playgirl/prostitute/straight up slut in the past before meeting the male lead. She eventually meets him and falls for him and becomes a better person. Eventually the past tries to come back, but the couple gets through it together.

Okay had to bump this thread back up... so curious to read something like this too - any recommendations?

"The man who smiles when things go wrong has thought of someone to blame it on"
- Robert Bloch

six half should fit but there's some amnesia mixed in there

Jidokhage Kkeureoango Jidokhage Kiseuhago fits too

There's a oneshot in Coyote if you're willing to read oneshots.