(I rate anime a little differently, and am currently working on a explanation on my page. In short, I consider Plot and Story to be separate entities, and include the op/ed in the rating.)
OP/ED: 7/10
The OP is great, amazing music, good animations. I'm a sucker for any instrumental solo, so that small piano part at the beginning The only issue I have is that it fails to give a heads up of the comedy in the anime. The ED is nothing crazy, and mostly fanservice. The OP is definitely more important than the ED, so I feel like a 7/10 is pretty fair.
Characters: 3/10
There isn't really anybody that interesting in the end. While the anime brings up an interesting metaphor about the two main characters, Sora and Shiro, who view reality as an "unfair game". But it's never really expanded on. They're shut-ins, that's it. The fan service and out-of-place comedy completely ruined any emotional attachment I had to the any of the characters. Nobody else is worth mentioning other than Stephanie, who's just brain dead. Only thing raising my score above a 2 is the fact that Sora had moments where he was really bad-ass, that's it.
Story: 8/10
This has to be one of the best Isekai setting that I have experienced. The whole premise with the 10 rules is well thought out and quite unique. The games and acts that take place are really well thought out, each with its own ingenious solution that allows the protagonists to defy the odds every time. However, there are a couple things that just seem out of place. Like the many bath scenes (which are clearly just fan service), or Sora thinking with his dick and the events that follow. Most of the fan service scenes just seem unfunny and not necessary.
Plot: 5/10
The story follows a pretty solid plot through it's 12 episodes. It feels like most of the encounters that the characters go through are meaningful towards the plot (except the fanservice moments, which don't advance anything). Most of the people they meet along the way end up being important to the plot in some fashion, even Stephanie. But the end leaves us with literally no closure, it's a cliffhanger that isn't even that good.
Art: 10/10
NGNL's art is spot on. The unique color scheme is excellent, and one of its best qualities. The quality of background visuals is quite impressive for a 4 year-old anime. Everything is really well done, not much else to say.
Aesthetics (Voice Acting+Music): 7/10
The voice acting and music are not bad at all, but they aren't anything incredible. Voice acting remains pretty average throughout, with some pretty good moments here and there. As for music, its not really that noticeable, which is both good and bad. But the sound effects are really well done, and fit the dramatic shifts very well.
Enjoyment: 6/10
I really enjoyed the actual "game" parts of this anime. But the fanservice was just disappointing, I can't stress it enough. But everything else was somewhat enjoyable for me.
FINAL SCORE: 5/10
Would I recommend this cake to somebody else? Well... If you think you will like the fanservice moments, then be my guest. Or if you like getting your mind blown by the crazy solutions or cheats to whatever game they're playing. But if you don't think you'll enjoy the fanservice, I think it's worth to watch the first couple, if you loose interest after then, you're not missing out on much.
