I like that Emi's working at MgRonald's now - it gives Maou some good competition. We get some good insight into why the Sephirah are important in this book -

Spoiler

if they're not on their original planet, then humanity there will cease to exist (in like a hundred years). And also holy force shouldn't exist, and only does because of Alas Ramus's broken Yesod fragment not being together and on the tree, or at least in the correct world of Ente Isla, like it should be. Nothing on demonic force, I don't think. Laila showed up and was about to explain all of her part in everything, like breaking up, or at least scattering the pieces of the Yesod fragment Alas Ramus and her sister are made up of.

Maou and Emi see a bit of a shift in their relationship in this book, which started to occur in book eleven. Basically,

Spoiler

they're acknowledging (most of the time) that they actually somewhat care about one another, although we still see them fight and have a lot of fun banter. I liked the birthday present scene.

Also, Maou finally talks about his feelings for Chiho:

Spoiler

he doesn't want to expose her to the world of Ente Isla even more (although I'd argue that she's super far in now, dude) and he's worried about the whole thing of him aging and her not being a problem.

Glad we finally got some insight!

The first two parts of this book are spent on backstory, for Olba and Emi's dad, respectively. The next part is on Emi working at MgRonald's, with the final quadrant (as opposed to the usual thirds) is centered around explaining the Sephirah and their purpose/importance/relevance to our group. We learn

Spoiler

that there's some sort of "eleventh sephirat" which the OG Satan mentioned to Lucifer (who now has angel hair, like Emi's when she transforms) at some point in the past. I'm quite excited to see what Laila reveals.

The overall plot of this series has really been ramping up lately. That said, I do miss the banter that we only got to see a bit of here. Still, it was a good installment in the series, if slightly heavy on backstory as opposed to current events. 4 stars.