I loved the first season so I went onto the second one. Watched it all in an hour again. I love how you can now summon demons with QR codes. Better beware of those! Said demon also sounded like some sort of crazy advertising sales guy. Again, great antics from all the characters. It's so fun. And although it seemed to take a slightly darker turn, it was all good in the end! There's also some more action/fighting as a result of that but it's still cool. Still enjoy this series. So let's see...Story: 10/10
There was some sort of overarching plot involving some demon king that got half-wrapped up by the end. I mean it did, but I want to know what happens next. It's definitely not the worst thing i've seen.

Art: 10/10
Again, it's very unique but good!

Sound: 10/10
I mean... definitely. They kept the opening theme as well as the ending themes from the first season so no extra comments there. There's also a lot of Halloween-sounding music.

Character: 10/10
As unique as usual! We got some more character backstories this time. Awesome. Some relationship developments.

Enjoyment: 10/10
Thoroughly enjoyed the second season, even if I was sleep deprived watching it too early in the morning. Oops! But I'll just have to watch it again.

Overall: 10/10
To be honest as soon as I finished writing this review I went back and rewatched it again >.<
It's definitely fun, even as a rewatch. I think this has safely made my top 20 anime for now :)