The Beginning After the End season 1 episode 8
Episode title: Reunited with the King
Having arrived in the city of Xyrus, Arthur is thrilled to meet his younger sister, Eleanor, and to reunite with his parents. While sparring with Reynolds, he demonstrates how much he has grown. After witnessing Arthur's strength, Vincent Helstea proposes that the reborn king enroll in Xyrus Academy, a prestigious sorcery school.
