As a gator who lived in Japan for over a year I agree that much of the food is amazing. I could live just off of Matsuya and some occasional shabu shabu and okonomiyaki.
Best dish of all time is Houtou though
https://en.wikipedia.org/wiki/H%C5%8Dt%C5%8DUnless she goes near Mt. Fuji I doubt she'll find it though unfortunately