Japanese KikokushijoRefers to children of expatriates who take part of their education outside Japan.

Specifically to Japanese children of expatriates who live abroad during their formative years and return to Japan. I found this word when I was reading the Wikipedia page for "Third culture kids". The term kikokushijo mainly refers to Japanese children but third culture kids can exist in any country. Edit: As BarfingBear stated, the returnee part is important so I added it.