When I was stationed in Iwakuni in the 80's, there was a Japanese University in Hiroshima, an hour away, that specialized in teaching English to Japanese college students. It was great for the servicemen, because we could take the train up there, and find young Japanese folks who were just dying to try out their English skills on real Americans. Americans with southern accents, Boston accents, and so on. It was a great way to hang out with the natives and learn, and the chicks are hot. Perhaps your daughter could look into doing some teaching at that University...
https://en.wikipedia.org/wiki/Hiroshima_University
Oh, and the University of Maryland had overseas branches on US military bases to offer college classes to servicemen. So a professor could go teach classes for a year or more, and immerse themselves in the new culture. That might be an option too.
https://chroniclevitae.com/jobs/0000920762-01
