> Oh. "So, you two really did raise me from birth, huh?"
> Were there any questions raised while we were growing up about who our guardians were? Did Kanako-sama and Suwako-sama show theirselves at all in the Outside World?
Just throwing this out here, I don't think Sanae would have any problems accepting this: why would she? Kanako and Suwako were pretty much the closest things she had to parents growing up, and all this really means for her is that they've been doing it since she was a toddler. She wouldn't feel angst or anything from knowing this information, except for perhaps a bit of sympathy or pity for her natural mother, but kind of accept it as "okay, that's how it happened" and move along. It's not like it's a lifelong quest to discover where she really came from: the thought never really occured to her until it appeared out of nowhere.