Len & Rin will be better as Zepar & Furfur...

"Hey, this Virgilia is pretty hot."
"Wait, who is that anyw--"
"OH DEAR GOD"

Meiko WOULD make an awesome Beatrice...

"And in this episode, Keito dies horribly."

Nilix said:
"And in this episode, Keito dies horribly."

In every damn episode
He denies death and witches cause they don't exist..facepalm dman that sucked

Kaito:"SINGING WITCHES DO NOT EXIST!"

Gakupo has some nice cleavage

Rindadelta down there is horrifying.

I see Gakupo, Meiko, Rin, Len, Gumi, Miku, Kaito, and Luka.
Why do I feel like someone's missing?

It's Perfecto!

So we have:
Kaittler
Minge
Rindelta
Lentarou
Gumiria
Lukastell
Gakugilia
Meitrice

LOL xD

Imo, vocaloid can be crossed with ANYTHING, without it really belonging to the most unlikely crossovers.