Not an immigrant

Japan is not an immigrant country, so it cannot be called an immigrant. After you get married, the first thing you can get is a visa for your Japanese spouse. Usually once a year, but also once every three or five years. Note that many people go to Japan for fake marriages, so the approval of the Japan Immigration Bureau will be stricter. In order to avoid the suspicion of fake marriage, the information you provide must be good and sufficient, such as photos of two people's contacts, telephone communication records, bank remittance slips for sending living expenses to each other and so on. . .

If you have a stable job and no bad record after going to Japan, you can apply for naturalization in about 3 years, that is, become a Japanese citizen.

Then you can handle it according to the following three situations.

1, parents have no other support and no one to support them.

2, parents are old. Generally over 65 years old, can't work in Japan.

3. The reasons why parents need to live together in Japan, such as getting sick.

This kind of visa is called "special activity", but people who come to Japan for the first time can't apply for this kind of visa and need to make a detour first.

First apply for a "short stay" visa for the purpose of "visiting relatives", which usually lasts for 90 days. After arriving in Japan, apply for a change of residence qualification and change it to "specific activities" so that you can live for a long time.