Board Thread:General Discussion/@comment-6192846-20150822000535/@comment-26871067-20150822013214

I was definitely under the impression that "Levia and Behemo are Rin and Len characters" was one of those "we're just waiting on confirmation" things.

At the same time, Held doesn't seem to have a Vocaloid representative despite having a described humanoid form, and neither does Sickle (as far as we know, I guess), so it wouldn't have been strange to me if Levia and Behemo followed this apparent pattern. Watch that be completely wrong and Held turns out to be Mikuo, though. There's a precedent for derivatives.