My experience is over 12 years (about 600 Japanese students) teaching in Japan. Many students visited Germany and Austria, studied and lived there, too. I can help you to talk German very fast, since I know, how Japanese with pick up German without problem. Still, I think that German should be much fun, even when it is not say language. Please mail me in English or Japanese. I am looking forward to meeting you. - Martin
During Corona I teach online (Zoom) as well as in person.