Song: Childish War
Art+Animation: Zarla :B
The original Childish War (sung by Kagamine Rin/Len)
Childish War (Uratanuki version)
Childish War (Akio version) (I swapped one line in the Uratanuki one for one line in this)
If for some reason you want to know more about Edgar and Scri, most of the art is at IGTKY (and is from 2005 and terrible as a warning) and the fics I wrote are listed here for the most part.