Generally speaking, many English learners aren't able or willing to communicate in English, and that's especially true in Japan (I suppose you are not in Japan?

Generally speaking, many English learners aren't able or willing to communicate in English, and that's especially true in Japan (I suppose you are not in Japan?). Note that most English-learning products in Japan are marketed using Japanese, and more often than not the content itself (navigation, explanations, commentary, etc) is heavily in Japanese. For instance, this is Yahoo Japan's site for English learners: http://stepup.yahoo.co.jp/english/ http://stepup.yahoo.co.jp/english/ This isn't unusual. Look at the language section at a typical bookstore and you'll see lots of books for learning English... written in 90% Japanese. I'm not in any way a specialist in that field but if you throw me an email I'd be happy to provide you feedback on your product.