What a mess of a series, axe or no axe.
Great art, but wasted years not knowing what to do with itself or its cast. Weak as a dark comedy, weak as an overarching plot, weak as a horror arc anthology and very inconsistent with its characters. Unfortunately it also has some very fun ideas and concepts it hints at, but wastes them by either not giving them their full attention in a self-contained arc, properly building up on them over time, or even pulling off both while still leaving it satisfyingly ambiguous.
It's a manga that had everything it needed to be memorable from the start, but just sat on its ass and didn't commit to anything until it was unsurprisingly cut short. At least the cancellation gives the benefit of the doubt of how much this was the fault of the author or how much he was rushed.
Definitely a very frustrating experience to read through.