Japanese permanent residence and American green card are relatively easy to mix, I hope those who understand can answer!

American green card, of course. My uncle is in America. It is said that studying for credits abroad can also lead to a stable job. Because I want to settle down in Japan in the future, I checked that Japan's permanent residency requires living in Japan for ten years, having a stable job and no criminal record within ten years. After all, Japan is not an immigrant country, so it is naturally more difficult to immigrate. It will be easier in America, but the strange laws and eating habits there are unbearable for Asians. Japan is better if you want to live permanently.