The Shepherd's Destiny
In order to save the people from the hellion that appears in Ladylake, Sorey extracts the Sacred Blade of the Lady of the Lake which would make him a Shepherd. He brings down the hellion, but Sorey himself collapses and regains consciousness later. Donning the legendary Shepherd’s attire given to him by Alisha, Sorey goes into town. The streets are lined with banners bearing the Shepherd’s crest and he realizes how much hope the people place on the Shepherd. Later, Sorey becomes the vessel of the Lady of the Lake and gains the ability to perceive Malevolence. And sensing Malevolence, he searches for its source in the aqueduct.
Aired 31/07/2016EP 5 - The Shepherd's Destiny

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.