Okay firstly im sorry for not so good english and for those who thinks my score is underated for this anime... okay here we go
Art 9/10
First time i see the opening scene, its wonderful! I'm sorry if this is so biased, but I like how the graphic drawn , its colourful and look solid. its like , despite any other aspect , I will surely watch any anime with such graphic or similar to it, its just look promising. my own way of scoring anime anyway. one word, the ART is wonderful.
Sound 8/10
Not much to comment here, I think everything just right , like OP/ED and Voice Actor is doing it right for every character, not really much a problem
Character 9 / 10
I like how the character designed , like everyone got different personality and unique
like the mysterious character, the traitor character , hot blooded character, absent-minded yet powerful character , loyal character , charismatic leader (sorry , try to be not doin any spoiler , so i just describe the major part of character personality) , every character has room to develop and some character past surely bring curiosity to the watcher and make them want to know more, but.........
Story 4 / 10
Here's the thing got awful , the anime theme is about the kings war which is good, but as you can see before , there are lot of room for character personality development, and some decent explaination about their past is needed yet the anime didn't really bring anything up. only a very slight was shown and what worse the anime only stand for 13 Eps which left behind many thing unexplained. I think the story got a lot of potential to be great but yet , its just potential, if its not developed then it's not.
Enjoyment 4 / 10
They just sum up my curiosity on every Episode and then the anime just finished like that which is giving me a really less enjoyment about it. hoping for a second season but only ended up got some 2 hour-ish movies which i'm sure not explain everything.
Overall 5 / 10
I think for some graphic design / manga drawer / fan art people , this anime is great ( I got some friend who work as graphic design love this series and do a lot of fan art)
but for me who watch anime for enjoyment and story , I think this anime flaw in many parts. I think i'll change the score if there is 2nd season (26-ish episode) which if there really is , will surely explain all the mystery.