10/10 for Rin. 10/10 for Len. Together, they have a 20/20. You can't make me rate one without rating the other, especially when there's a picture of both of them. I love those two Vocaloids to bits. And to answer your question, there are official manga for Vocaloid, but I never actually read that, I just remember seeing volumes in a bookstore that's near my house.
Hanasaki from
Trickster.