[...but are you really okay with that, Luffy? Nami winces at that, but ...unless she can find a different way to deal with it, he's got a point.]

Vash will hate the fact that we killed someone in his name. [And she hates the idea of going out with the express intent of killing someone, but ...]

...but he'll kill again. He likes doing it too much. So ... we should do it for everyone in Luceti instead.

[Beware, Luffy. She's assuming the entire crew is going after him :|]