This anime was very slow to start. The characters were pretty much straight forward but there was very little development. The story took quite a while to get going... it wasn't until episode 6 of 12 that we finnally find out the significance of the main character, Shiratori Kuu.
I found this anime worth watching but somethimes annoying... I found myself wanting to fast-forward through the battle sequences(they weren't very engaging)... I would have much prefered to see a bit more character development in this series.
With that said however, I always reccomend any anime that can manage to get a physical response out of me while I am watching...
So purely for the last episode, which made me cry, I reccomend Kyoshiro to Towa no Sora with a 7.2 out of 10.