Board Thread:Poll Archive/@comment-24095889-20140415141927/@comment-87.179.60.182-20140903194531

In the wikia article about Rin and Len (the Vocalist article, not the product article) is written that they are androids. THIS IS THE FINAL SOLUTION ABOUT THEIR RELATIONSHIP. Isnt it great? Their history could be like that: They were build togheter as two Androids for singing while Len is the male version from Rin and the other way round. In some songs they play lovers and in others they play twins.

-This solutions explain how they could have the same lastnames without being siblings or married.

-Why they are in some songs lovers and in others twins

-And it fits with the official answer from Crypton, that they are no lovers and no twins