The Lord of Calamity
War inevitably breaks out between the Kingdom of Hyland and the Rolance Empire. Just at Bartlow had planned, Alisha is stabbed by a soldier from her own kingdom. Meanwhile, an immense mass of Malevolence appears before Sorey and company on the main battlefield. It is none other than Heldalf, the Lord of Calamity. Sorey sees the real Heldalf in the center of the Malevolence and declares that he will “purify” him. Even as countless hellions summoned by Heldalf charge at him, Sorey has faith in his power and the power of his friends, and continues to fight.
Aired 25/09/2016EP 13 - The Lord of Calamity

Tales of Zestiria the X
Sorey is a human youth who grew up among the seraphim, spiritual beings not visible to humans.
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.
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.
He begins to realize the gravity of his mission, and his dream of coexistence between mankind and the seraphim becomes more intense—
And thus, the Shepherd embarks on a journey with his companions.
(Source: Official Website)
Note: Includes episode 0.