In the midst of a Holy war between the Demon Clan and Deity clan lie the humans; the deity clan exist to protect them while the demon clan to punish and enslave them. Their armies, led by the Demon God and the Supreme Deity have caused constant tension for centuries, potentially even millennia. The Supreme Deity has bestowed his power upon 6 individuals throughout this war and now the graces of the deity have made their way to 6 key humans bonded by their new grace and new duty to protect humanity. Under their mentor, they seek to bring an end to the Holy War once and for all, and bring peace among the clans and the humans. However their road to peace is not a simple path, it is a shaky one filled with twists and turns at every end...