Chivalry of a Failed Knight

What is Chivalry of a Failed Knight?

Ikki Kurogane attends an elite academy for Magic Knights—warriors who channel their souls into combat weapons—but lacks any magical ability himself. When the foreign princess Stella, ranked number one in her class, challenges him to a high-stakes duel with permanent consequences, Ikki must prove that determination can overcome natural talent in this action-packed fantasy series.

The "school sword action" story revolves around Magic Knights, modern magic-users who fight with weapons converted from their souls. Ikki Kurogane goes to a school for these Magic Knights, but he is the "Failed Knight" or "Worst One" who is failing because he has no magical skills. However, one day, he is challenged to a duel by Stella, a foreign princess and the "Number One" student. In this duel, "the loser must be obedient for life." (Source: Anime News Network)