my fav would be rin and gakupo is my number 1 kaito and miku is my number two
KaitoXMiku and this is fan made by me and my friend TaitoXLuka then LenXRin
Kaito and Miku for sure
I like GakupoXLuka and KaitoXMeiko ^^
LenXRin!!! and then KaitoXMiku!!! but they're all so kawaii~!!!! X3
kaitoxmiku!!!!!!
These are all my favorite vocaloid couples, and they are probably a lot of other people's favorite as well. But I can't think of any that are unique. Miku x Kaito Gakupo x Luka Rin x Len