What Eagle said regarding Japan.
Im sure either way youll find there are "western" places which you could survive on, "English supermarkets" and Ye Olde English tavern etc
Better start watching Anime to start learning the lingo
So far Ive learned a couple of ways to say "What" and "huh" and "what the..." because of the random stuff Ive been watching the characters are just as confused as me!