Kiba

In an overbuilt world, young Zed dreams of freedom and of a door. While fleeing the authority of his world, he is transported to a completely different place, a world of nature instead of machines. There he meets the young girl Roia and learns that he is a Shard Caster. He can cast Shards and control “Spirits”. Unbeknowst to Zed, his best friend Noah has also travelled to the new world. Noah and Zed become enmeshed in the ways of their new world, while growing into their new abilities.

Synopsis from Anime News Network