I'm a French guy in Working Holiday Visa in Japan, and traveling across all the country.
I can teach you French and English. All lessons will be in English (because I can't speak enough Japanese).
Most of the lessons will be about "casual" French and English, witch mean I'll teach phrases to introduce yourself and have some conversations with other people.
It will be free talk most of the time, sometimes I can speak really fast (especially in French), so don't hesitate to interrupt me, and ask me do talk slowly or asking for explanation.