[FairyKing]

Random stuff I noticed: The black Capsem used to activate Seven's gadgets instead of Zeztz forms, (called the "CODE Capsem" on the wiki), has an animation of a running black cat. Black cats are associated with bad luck, which Baku has. The pair of creepy eyes that appear with Zero in the opening have vertical slitted pupils like a cat. And the wiki lists a cat-themed Nightmare that hasn't appeared in the show yet (from promotional content, I assume).

I don't know what all this means yet, but I'm pretty sure a cat or cat-themed character is going to be important.