I just thought of something

I've always wondered why Sanae is so unusually powerful when her divine ancestry is many generations back

I don't think these things just skip 50 generations, so there must be a god in her family tree much more recently than that

I think her father was descended from Suwako, and her real mother is actually Kanako

Kanako certainly treats her like a daughter, in fanworks at least, and she cares about Sanae a lot in canon as well

Just something I thought of