I noticed that the "kanna" tag is applied to five identical images, and I'm trying to discern why, seeing as it appears to be a sort of "disambiguation" tag.
Given the "artist" categorization, it *might* be intended to refer to Kisaragi "Plum" Kanna, but I'm not convinced, given what little I've seen of her other artwork.
The other possibility is that it, for some reason, was being used as an alternate tag for kannabi no mikoto.
It seems to have started at post #598861, which had the tag since 2010.
I would do something about a "disambiguation" tag being used like this myself, but I'm not sure which way to go about this.