So...this is my....version? tribute?....attempt?...at some of the artwork from this video by Kurozumi, one of my favorite Vocaloid Producers. Obviously, it's missing a lot of the finer details.....I'm lazy that way...and it probably has some weird effects b/c I'm still just playing with digital stuff to see how it looks.
Anyway....in some ways Lily and Gumi are considered sisters b/c they're part of the "Internet Family" (along with Gakupo and Ryuto) but....who says your sister can't be your best friend? (I only have a brother so I wouldn't know...) The song/video is about working together to protect something so I'd say it fits for best friends (err...why do I feel the need to explain all this?)
Also, for anyone who watches the video and can't read Japanese I'm sorry but it's late and my head hurts too much to translate all that right now! The bit in brackets before the music starts though is [Bokura ga mamoritai risou wa...] which loosely translates to "The ideal we want to protect is..."
I'm begging you otaku staff, change the name of the category to Vocaloid already!