Feat tax for eastern weapon?

[liamfisher]

I was building a character and was going to go for the Rapier but for aesthetic reasons (building a weeb) I wanted to use a wakizashi, as it appears to have all the same attributes as the Rapier (finessable, light, crit range, crit multiplier, everything). Am I required to take a feat tax to use the eastern weapon for society play? If it matters, the character is meant to be eastern in origin.

Rapier is just a pointy metal stick with a fancy handle.  It only does piercing damage. 

A wakizashi is a blade that was mostly meant to kill already disabled opponents and it does slashing and piercing damage, plus extra DC on coupe de grace.


Damage types are a big thing.