Tales of Zestiria the X (2016) : 1x6

Velvet escapes from the prison tower with the help of a young daemon named Rokurou. The only way to access the island prison is by ship, so she and Seres head for the harbor. But Oscar, the praetor exorcist who has been ordered by Artorius to subdue Velvet, is already there. Velvet takes him on. Oscar believes in the natural law of the world that Artorius espouses. But Velvet cannot forgive such a world that was made possible by the sacrifice of her younger brother. Completely at odds with each other, the fighting continues...when suddenly, a dragon appears.