The thing you are looking for is the Guide to permanent residency In Japan.
This README contains a little extra information.
You are totally welcome to redistribute or rehost the documents in this repository under the terms and condition of the Creative Commons Attribution Share Alike 4.0 International license.
Contributions are welcome. If you know how to use GitHub, you can directly open a pull request or create an issue.
If you do not have a GitHub account, you can also send the feedback by e-mail to
mailhol.vincent(at-sign)wanadoo.fr.
Whether this document stays up to date or not depends on you. I personally already got my permanent residency so I have no more incentives to proactively follow the latest updates on the topic and document them. That said, I will continue to incorporate any feedback I receive. If you reach out each time you encounter something which became obsolete, the document will stay alive. So, if this document was anyhow helpful to you, please consider reporting any inaccuracies or contributing new paragraphs to document any discoveries you made and which could help other people!