The clan of the village where Gray was born, aimed to create a being capable of handling the Holy Lance that had been passed down for generations. In other words, their purpose was to revive King Arthur, in flesh and spirit. However, their attempts had thus far been continuous failures.

Gray was to be the flesh of King Arthur. When she was born, her facial features vaguely resembled those of King Arthur, but with the years, her body suddenly changed to that of King Arthur's. Losing her true face, she could no longer differentiate her own existence from that of King Arthur. Because of this, she could never fully understand herself.

Due to Gray's situation, the villagers, including her mother — believed her to be King Arthur's second coming, and treated her as the body of the king. As a result, Gray feared and hated her own face. It was decided by the villagers that they will use the gods to summon King Arthur's soul, and infuse it into Gray's body. Unfortunately, this meant that Gray's own soul would be lost forever.

Upon hearing the news, Lord El-Melloi II visited the village, and due to circumstances, Gray was entrusted to El Melloi who made her his apprentice; admitting her to the Clock Tower of London.


She is about 15 years old in the events of Adra Castle Case. She has a striking resemblance with Saber to which Lord El-Melloi II believes Gray to be a distant descendent of King Arthur. Her face brings unpleasant memories of the Fourth Holy Grail War for Lord El-Melloi II so he tells her to wear a hood to hide her face.