well here also have mosques around here. but you`ll see the difference is that the mosques here usually like a surau in some shopping complex in malaysia. also have the big one but not so many. among the japanese, they still many of them still dont know about what islam is. so, dont be shock if you come here, they`ll ask you a alot about islam. esspecially for muslimah. halal food you can buy it with internet. well, not only halal food, everything here usually we just buy by internet.