Their Respective Thoughts
Sorey listens to Lailah explain about the Shepherd's true mission when a dragon appears. It goes away without attacking Sorey, but the townspeople who see this are overcome with gratitude, and even Barltow himself invites Sorey to his mansion. On the way there, Sorey see miasma from the Malevolence rising up among the people. He resolves to pursue the dragon in order to stop the Malevolence before it can spread in Ladylake. Meanwhile, Mikleo begins to ponder what he must do to inspire Sorey who is now a Shepherd.
Aired 21/08/2016EP 8 - Their Respective Thoughts

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.