An outstanding moe anime.
I would have never expect that Machikado Mazoku is such a jewel before I started watching it.
It does not only have one of the cutest character relationships and even one of my favorite character relationships in general, it even has an interesting story, good character development and especially one character with a depth you would never expect from a moe anime (not that I don't like moe anime, I love them, but it was unexpected good).
Yuko and Momo carry the show and I loved every moment of interaction between them. Even though it basic structure is to be lighthearted, but there are also serious moments which balances perfectly.
It even is comparable to Madoka Magica in some moments. I really can recommend you to watch it.