Methinks the lack of supernatural would be a fine change of pace.<br/>And remember--just because there aren't ghosts in the setting doesn't mean that a) people don't believe in them and b) a little trickery in the right place won't fool a lot of people!<br/><br/>Anyway, I'll repeat the first idea that came to mind: assuming I can find someone to play the other sister, twins separated at birth (or just sisters raised apart) who are both independently after the foul rascal who got their pa fired/imprisoned/executed on trumped up charges.  Ideally, they would not know of their familial connection until some dramatically inconvenient moment, like the morning after they end up indulging in a little sisterly bonding.   >:)  Or when they both end up going after the same boss mook.  Or...<br/><br/>Forbidden sisterly affection, family honor, melodramatic tension, and a whole lotta body count!  What's not to like?<br/><br/>Gotta see if I can find someone doing the opening riff from AC/DC's The Razor's Edge on shamisen or the Chinese equivalent.  Somehow it just fits.