Artoria Caster is a version of Artoria Pendragon who was the "Child of Prophecy" chosen by the "Staff of Selection" rather than the Sword of Selection. She is summoned to Chaldea as a caster class servant. The prophecy was that she would ring the "six bells", overthrow the evil Queen Morgan, and unite humans and fairies as King of Britain. She was taught Magecraft by Merlin (Oberon Vortigern posing as Merlin, actually). Unlike other versions of Artoria, Caster does not have the dragon and king traits nor does she have the Pendragon surname, as she does not have the same history as the Artoria who became King Arthur. She is a fairy created by the planet itself to be Lostbelt Britain's savior after the previous Child of Prophecy, Aesc (Morgan), failed. An innocent and very energetic girl. Artoria has the figure of a perfectly commonplace girl who hates to lose, is strong in the face of criticism and adversity, values the surrounding atmosphere more than anything else, and hides her true feelings from everyone. She projects an aura of earnestness, but her destiny weighs on her heavily, and her inner monologue is incredibly doubtful, pessimistic and self-depricating. She knows her destiny but is afraid to face it and wishes that she was not the Child of Prophecy. Feeling unworthy of and not wanting such a lofty title, she does her best to hide her true identity, but she gets noticeably nervous whenever someone asks about the Child of Prophecy’s identity.