It seems you didn't download the English version of the program. You can find the original post for the English version here: https://miiverse.nintendo.net/posts/AYIHAAAEAACHVRTxgvVlaA The key is <C33KEP3F>. The English version updates the UI. Just be aware that the help menu for the program is still in Japanese. However, it is wholly unnecessary to fully experience the program.