[Liongale]

I can understand your view, though you might find the culture you adore a bit cold to you, since you are not a part of it- society can be very 'closed' to outsiders.

Getting a job teaching English is a popular job it seems... getting a job otherwise can be difficult. If your Japanese is fluent, some companies have uses for bi-lingual people to help them as well if the position requires it.

In other words: best to find a job where speaking English is requested.