Arthur Pendragon, often referred to as King Arthur, is a central figure in the Fate series, embodying the ideals of chivalry and heroism. She is depicted as a female version of the legendary king, wielding the mythical sword Excalibur and committing to the protection and unification of Britain. With a strong sense of justice and a deep commitment to her ideals, she faces many challenges as a ruler and a warrior. Throughout her journey, Arthur seeks to uphold the principles of knighthood while grappling with her own identity and the burdens of leadership. Her story reflects themes of honor, sacrifice, and the eternal struggle between destiny and personal choice.