pretty much what switch said. Doubt (i mean it is possible , but dunno... There weren't really that many untill now that needed specifically a ninja to pass on) we will have a event that will REALLY really need a ninja. And if it will require 1 , it's probably going to be for the extra G map like our current event has. not 3 starring a map is not that big of a deal. Also , i'm guessing that our next event (or if not the next 1 , the one after) will be a star event. If that's the case , and u do need a ranged melee in it, you can just level her up during the first week , and finish the event during your second.