Something's disappeared?

Yes.

Bunbunmaru Editorial Dept.

That human said that when the victim was erased, so was anything she'd had a hand in creating.

That could account for Yuugi feeling like something was missing. It's not the victim herself, but something connected with her.

So, like...the victim's house or something?

Or maybe some land she'd had cultivated?

I don't think it's that simple.

I have a feeling we're all forgetting something very important...

Okay.

But you and Yuugi are still retaining a little of that memory somehow?

I don't see why not. Reimu and the others still had a vague recollection of the human village when it was erased.

So even if this person was erased and we can no longer remember her...

The feeling that someone existed, that something happened, doesn't disappear completely?