Kagamine Rin/Len (鏡音リン・レン, Kagamine Rin/Len) is the second installment of the Vocaloid Character Vocal Series. The developer says that their family name was from the developing code combining Kagami (鏡, mirror) and Ne (音, sound), i.e., they are the mirror reflections meaning Rin "right" and Len "left.", with the first syllables of their given names a pun on “Left” and “Right”. Although they have the same last name, Crypton has announced that they have no official relationship (ex. Read more on Last.fm