Headscratchers / Sarazanmai

• Are the parts where Reo & Mabu openly admit to killing suspects at the police briefings metaphorical? If not, then how on earth do they keep doing that with no suspicion garnered whatsoever, especially if they're not even real police officers?
• How was Keppi going to have Kazuki & Tooi help him if he wasn't planning on turning them into kappa until they pissed him off? What were they supposed to be able to do in their human forms?
• Why did Tooi's box go to Enta?