Japan is very interesting to visit.
But get out quickly. There are many huge and totally unexpected problems, that are not listed anywhere.
They try to show off Japan in best light to short term visitors, but, if you somehow stay too long, you are asking for a lot of trouble!
What are these problems? I have spent weeks and mmonths in Japan never an issue. They are by far the cleanest most organized and disciplined country I have ever been in. I would move to Japan in a heartbeat it’s hard to get perm res even with multiple master’s and a PhD if you are older than 45.