Lily. Although there aren't that many good songs for her right now.
same with me_ Hatsune Miku wrote:
Miku ,IA
What about her is "Perfect for you?"SkyHitter wrote:
Rin Kagamine. She's perfect for me.
I love all the vocaloids, but my most loved ones are Rin Kagamine, Mayu, IA, Luka Megurine and Meiko.