I like the premise, but holy heck is the manga a bit overly schizophrenic in the story department. Why not just give up Cinderella right away, how are you going to protect him if all Cinderella needs to stab the ML is to be close to him? And why would the C leave MC up for torture when he "loves" her so much.
Ahh well, manga seldom makes sense so this is fine I guess. Thank you for translations!