The animation was okay at best, the plot was all over the place, scenes were shown out of order, the ending; while not as bad as Arcana Famigilia or Soul Eater, is a let down because while it doesn't piss you off the show just... ends. So why did I like it? Because it had Nero and Nero had umu. So I don't rate this a 7/10 I rate it am umu/10 Break it down a tad more: Story - all over the place Art - its no Ufotable but it does its job. Action is mediocre Sound - I mean it works... Character - MC is an edgelord, Nerosaves this show
Enjoyment - Nero saves it with her umu powers
Overall - Umu