Shironeko Project: Zero Chronicle - S01

The world is split between two kingdoms: the Kingdom of White, which floats in the heavens and is ruled by its queen Iris, and the Kingdom of Black, which sits on the barren land below and is ruled by the King of Darkness. Lately, the forces of evil have grown strong enough to threaten the whole world. As the main representative of the Light, Iris has a duty to keep the world in balance and fight off the darkness in her kingdom. In the Kingdom of Black, meanwhile, monsters go on a rampage and wipe out a boy's village, leaving him as the only survivor. While he is grieving in despair, an armored man named Skeer finds the child and comforts him. Soon after, Skeer sees the boy's potential to change the kingdom's current state and names him his heir before he dies. The boy then vows to become the Prince of Darkness, the one who will take the King's place, to bring the world back to its rightful path. As Iris and the Prince of Darkness each face the coming doom in their own ways, their fates will intersect, and perhaps their bond will decide the fate of the world.