I'm liking this series. It's basically going back to basics of what Eko Eko Azarak originally was, back before Misa got her sword and the series turned into a battle shonen. But it's also a lot better in that it's managed to avoid the "magic sukeban deka" depiction of Misa in the original. The latest chapter looks like it's the start of this series' version of the Steel Lady Nanase arc in Kyokou Suiri.
Also, kudos to Koga-sensei for using black magic to continue writing this series from beyond the grave, and similarly to Yamada-sensei for successfully rolling safe sanity checks after each visitation.