Quote Originally Posted by ToLazy2Register View Post
6) Sapphire/Serial Code Units

Not sure how to elaborate on this other than it'd be nice to have some more specialized units, I highly doubt we'll see a lot of the Sapphire girls from the DMM server considering some of them were collaboration units with other games.
Actually, the only collaboration unit was a platinum Mage. All the sapphires are given out through codes from magazines, novels, or NicoNico streams. One sapphire was given out to a very small handful of people at the Tokyo Game Show, but they're expanding her as a free gift to every player in December.