1x10 - Tears to Tiara

As Octavia recovers from her wounds she begins to explore the castle and meet its inhabitants. Although most welcome her warmly Arthur is at first distrustful of having a soldier of the Empire so close at hand. When Octavia tells Arthur about his weak swordsmanship, Arthur doesn't take it and challenges her to a duel. However, she is eventually accepted by Arthur and decides to join the Gael Tribe.