Would it be possible to live in Japan if my partner/care taker lives there?

So I will be getting SSI soon as a result of being unable to get a job due to my physical disabilities.

However, my partner who takes care of me for the last four years of my life plans to move to Japan and study/work there for the next eight years. I was wondering if any visa would be able to get me over there with them while they are there for the eight years?

What would that process look like? If anyone has any advice, recommendations or ideas please let me know.

Thank you for your time.