Kokubyaku no Avesta

Taking place during the era of the First Heaven, it takes place in a war-torn world where everyone belongs to the side of either good or evil—known as Ashavan and Dragvant respectively—with peace being fundamentally impossible. In the midst of all this, a being known as Quinn is born as a fusion of both Good and Evil. She is sent by her father to learn about hope and miracles so that he himself may one day understand them. She is eventually drafted into the Yazata, a military group made up of the best fighters available to the Ashavan, where she now works to further her goals. Among their ranks however, there is an individual who might have a massive impact on not only her, but maybe even the era as a whole: Magsarion.