Chivalry of a Failed Knight (English Sub) Episode 7

The protagonists of the "school sword action" tale are Magic Knights, contemporary magic users who engage in combat with weapons forged from their souls. Ikki Kurogane attends a school for these Magic Knights, but because he lacks magical abilities, he is the "Failed Knight" or "Worst One" and is failing. However, Stella, a foreign princess and the "Number One" pupil, challenges him to a duel. In this duel, "The loser must be subservient for life" in this duel.