Haigakura

There was a magical world that was run by gods located above the skies. The stability of that world depends upon four main gods that provide support to the world. One day they all just suddenly disappeared and the world started to crumble. If they won’t come back this might get destroyed. For that, they caught some people and set them in their place until the Kashikan force caught them. Ichiyou has no choice left but to join that force to save his forester father. They set his father in place of those evil gods. Now he just wanted to catch them and get his freedom.