Well in my former line of work, Japan HAD to employ immigrants. Us. The market demanded tall, white [ we were not allowed to sunbathe] dancers. Their own dancers would simply not fit the bill. So we were given good contracts, usually for six months at a time. The big difference from Japan to say the UK being this. The very next day after our contract ended, we were taken from our hotel where we had lived, and put on a flight to either Paris or London, depending on where our contract was signed. We were absolutely not allowed to stay in the country after our work permits ended. People say to me why are you so against the influx of Immigrants to the UK when you lived and worked all over the world? The difference is, I didn't stay in Japan, France, Hong Kong , The Philippines or Greece after my work ended. I wasn't allowed to. I didn't settle there permanently, using that country's education system , healthcare system, housing, other resources. As far as Japan was concerned, we were absolutely not allowed to remain in Japan, even though our actual visas didn't expire until a few days later. End work that night. Next morning and we were on flights out of there. They made sure of it. Which is the way every country should operate. Especially ours.