So last week this show completely jumped the shark, this week it achieves escape velocity and ends up in orbit. I got a few laughs out of the first half which continued the utter stupidity of episode 11 (Mei and Akazawa's fight was like pro wrestling), but the big reveal was...eh. I'm okay with Reiko being the Another, but Reiko and Ms. Mikami being the same person? You can try to rationalize that all you want, but that's an epic ass pull.
Time to file this one away in the drawer of promising but ultimately disappointing shows along with Ookami Kakushi, the last show of this variety that I can remember that failed this badly.