Thank you for answering my question!
May I ask why boarding schools in USA aren't so good? I heard there's famous boarding schools called "Ten schools" in
USA and they have amazing qualify of education but I'm also worried if schools in USA have some drug or sexual issues, which never take place in japan in any decent schools..
In my opinion, for japanese kids, going to boarding high school in canada, UK or New Zealand would be great but schools in UK is a bit too expensive and far from japan so maybe Canada would be the best choice..?