Talk:Kagamine Rin \ Len/@comment-25827435-20141208150221/@comment-5051846-20150104192755

Ah, the song Servant of Evil is not canon. No song's canon extends beyond the story created by the producer, Vocaloid songs are composed by many different people.

Rin and Len have no official relationship, so musicians that users of the Vocaloid software can choose what their relationship is in the songs they have them sing. (*´・ｖ・) Read the article for more information.