The story is... well... There is definitely a lot of "plot", but not plot. I never expected KyoAni to do an ecchi anime, so it was very surprising. Of course, the art is just wonderful, however I do think it could have been a little better, for I think Kyoukai no Kanata did a better job with art.
The OST was also quite good; the opening is very catchy, and fits the anime well. Battle scenes have some epic music that makes scenes more memorable.
I rated characters 7/10 mainly due to the MC. Haruhiko is a very interesting character. Every episode, we have Haruhiko giving us a short lecture, giving an idea of what the episode will focus on. I also liked his special abilities, for his abilities fit his personality well. (or maybe his personality fits his abilities well?) Also, his 1st-grade self was very refreshing, as well as Kurumi's personality. I personally detest anime where characters act way stupider than their age, especially in elementary school (e.g they can't talk properly, they don't know how to do anything without an adult supervising them, even though in real life they would be perfectly capable of much more.) Kurumi is brave and responsible, which instantly made her one of my favorite characters. Even though she carries Albercht around, there is an aura of maturity coming from her. And Haruhiko... His 1st grade self is barely different than his high school self as a geeky, walking wikipedia nerd. I am not necessarily a loli fan, but a lot of slice of life anime seldom have young characters who actually act their age. I really respect this aspect of the anime.
For me, the first 10 episodes were just slice of life with a touch of fantasy. Then you get to the last three... and wow, it gets real. It honestly made me cry when the MC had the official reunion with his mother. I think this was an anime where the intro was disappointing but had a very compelling ending. If there was a second season, I would definitely watch it (but based on the spoilers I've seen around the internet, the second season would be dimensions different than the first...)
