[TheRaizin]

Must be a plot hole? How come Hiromi doesn't have one when we clearly saw it when he tried to use the Revice driver? I know Revice destroyed it, but that doesn't mean the demon is gone, as Kagerou shows he can just keep spawning them.

Vice and Kagerou probably aren't too different from the MOTWs apart from their looks and power, since Vice is released basically the same way. Which is stamping yourself.

Really weird they haven't talked about what is Hiromi's demon and why he doesn't have it locked up. Would be funny and (preferred) if his demon was actually the little spider that spawns in his transformation.