On the issue of permanent residence in Japan (there are many questions)

There are three ways to obtain permanent residency in Japan. 1 stayed in Japan 10 years. If you marry a Japanese or a permanent resident, you can get it without having children for 7 years. Still married, but you can get it three years after giving birth. But only if you have obtained a three-year visa.

As long as you stay in Japan legally and can speak Japanese, there will be no inconvenience, even more convenient than at home. If you stay in Japan before obtaining permanent residence, you must have a Japanese visa and residence card. It is convenient to do anything with these two things. Just provide a copy when renting a house. As for the job, it's easy to find a part-time job, but it's not easy to find a formal job. But if you want to stay in 10, it can only be a formal job, or you can study abroad first and find a formal job after you get familiar with it. Fluent Japanese is a must for formal work.

Leaving a card is equivalent to our ID card. When we go through the customs, we will fill in some things, and the immigration will send them to your home after filling them out. So before you go to Japan, you must have a place to live and a Japanese phone. We can fill in the name of a friend or school first, and then change our residence after confirmation.

With a visa, you can go home at any time and fill out a document before going through the Japanese customs. The customs will ask a few questions and stamp the re-entry permit. As long as the visa expires, you can come back, let alone stay permanently.