Sir Kay was the son of Sir Ector and foster brother of Artoria, who later became known as King Arthur. Due to being female, Artoria could not inherit the throne by normal means, so she was given to Ector by Merlin to be raised as a simple knight apprentice at the age of five. Although Kay could tell she would grow up to be a beauty, his father told him to guide her like she was his brother. Artoria was initially raised under the belief that they were related by blood, but she was later told the truth while growing up. Their relationship did not diminish from the truth, and they still felt they were true siblings. Her identity as being female was known to him, but he kept the secret all his life after being sworn to secrecy by Merlin.


When Lord El-Melloi II, the later Waver Velvet, gets asked to claim his inheritance over Adra Castle, he travels there with his apprentice Gray to do so. But they are not the only ones called that way. The will of the previous owner states that the assembled contestants—including Luviagelita Edelfelt—must compete in a game of wits to win the castle.


The second part in a two-part anime film project adapting the "Sixth Singularity - Divine Realm of the Round Table: Camelot" story from the game.
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(Source: Anime News Network)

When Lord El-Melloi II, the later Waver Velvet, gets asked to claim his inheritance over Adra Castle, he travels there with his apprentice Gray to do so. But they are not the only ones called that way. The will of the previous owner states that the assembled contestants - including Luviagelita Edelfelt - must compete in a game of wits to win the castle.
