Ten thousand years ago the humans under the leadership of Holy Emperor Flayle, the Holy Emperor of the Church of the Light, declared war on the so-called demons. Unfortunately for the humans, the demons had devised a plan against the, resulting for the devastating loss of the humans. The Holy Emperor, after drifting into the Void as a lost soul for ten thousand years had gained pity from both the Goddesses of Light and Darkness and many other Gods. Now, having bestowed good fortune, he was going to be reincarnated but, with 2 conditions: First, when he returned to the world, he must lead a holy order that worships both the Goddesses of light and darkness; Second, he must be reincarnated to a creature that the Goddesses think the best, a necromancer.