Well, I believe that Satan(Devil) is not going to bother much with those he has already doing, what he wants them to do!!!!!! He will tempt those that are Christians, and trying to live for the Lord!!! Now, I am not saying that all of Japan is Anti Christ but, there's not too many Christians over there!!!
This is a Christian Nation, and so the Devil hangs out here a whole lot more than he would in Japan or any other place that he has convinced!!!!