What do I do for income tax when I had no income last year?

I came to Japan in 2024 on a spouse Visa. Last year I filed my income tax in Canada as all my income that year was made while still living in Canada. I haven't been working since I came to Japan and have no employment income for 2025. I do however have a TFSA and RRSP in Canada that have increased in value, not sure if that's relevant.

Do I have to explicitly report that I had no income? And how would I go about doing that? Or does the increase in value of my TFSA / RRSP count as income? Any help is really appreciated.

by _Lodesa_