User blog comment:FairyRaven/Fairy Tail Chapter 371: Tartarus Arc, Part 2: Song Of The Heavenly Dragon, Review and Commentary/@comment-5303512-20140214102756/@comment-7418318-20140214115208

I'd love it if Cube is E.N.D. and that's how it looks while it's sleeping or semi-awake and it'll transform into a giant Demon once it fully wakes up or sees the need to intervene personally.