Sorey is a human youth who grew up among the seraphim, spiritual beings not visible to humans.<br> Sorey believes in the folklore that says “long ago, every human was able to see the seraphim" and dreams of unraveling the ancient mystery to make the world a place where people and seraphim can live together in peace.<br> <br> One day, Sorey visits the human capital for the very first time. He becomes embroiled in an incident during which he pulls out a holy sword embedded in a rock and ends up becoming a Shepherd, one who casts away calamity from the world.<br> He begins to realize the gravity of his mission, and his dream of coexistence between mankind and the seraphim becomes more intense—<br> <br> And thus, the Shepherd embarks on a journey with his companions.<br> <br> (Source: Official Website)<br><br> <i>Note: Includes episode 0.</i>