Oh there is a minimum work count that's fine. I went into the show blind without seeing the ratings. Finished watching in 2 days and wow it was fantastic. Though to be clear, I love shows that are able to surprise me but still make sense. This one does, again and again. I also love a fast paced show. In a world full of predictable cookie cutter anime, this is a gem. The fact it appeared to be another generic anime before turning into a real show was just one of the twists.
I decided to give it a 10. Logged in to see it averaged 6... that's odd. Did I get the right show? yep, 11 eyes...6/10. Wow that's a big gap. Not sure what happened there. I reconsidered my 10 but have to stand by it for emotional impact over the last few episodes. 6/10 is in the trash category and this was great. I thought it would have averaged at least an 8. Perhaps it got some bad ratings after the first 2 episodes and that gained momentum?
If you liked Mahou Shoujo Madoka★Magica you will like this. If you haven't seen Mahou Shoujo Madoka★Magica go watch that first as a test. If you don't like it you can probably skip this one too. Dark plot heavy world destroying anime may not be your thing.
