I just started watching Wagnaria!! and noticed that it says "Working!!" in the opening. I do understand that the title Wagnaria!!, as printed on the Box, DVD Cover and listed on NISA's Website, comes from the name of the restaurant in the anime which the story mostly centers around.
So I am wondering, does Wagnaria!! mean Working!! in Japan? Why is the anime titled Working!! but in the West it's labeled Wagnaria!! (with the second season being Wagnaria!!2), since normally in the West either the Japanese name is kept or it's translated to English?