I'm looking for to find manga that has a sadistic guy being pursued by a girl. I was thinking something like Okami Shojo to Kuro Oji, but there isn't any kind of trickery involved and she's not trying to change the guy - its more of a mutual relationship. Or like Keiichi in Rainbow Days, where he kinda upfront about what he wants at the start.Looking for romance, not hentai though!
Many Thanks!

maybe Usotsuki ouji to nisemono kanojo?

Memento Mori (FUMI Fumiko)