Prior to his birth, Kay's father Sir Ector who at the time was still known as Cynyr Ceinfarfog, prophesied that his son would be gifted with incredible powers, but that Kay's heart would be eternally cold and that he would be exceptionally stubborn. Kay was born seven years before Arturia and two years before Morgan. It is said that he actually existed as Ceolwulf, one of the Kings of Wessex, who was a powerful Saxon ruler who fought and contended against the Britons, the Scottish and the Picts, as well as preventing foreign invasion to central Britain, thereby earning the respect and fear of his enemies.

While Kay is a hero well known as a being one of the foster brother of the King, and an acid tongue and bullying, boorish but brave and fierce warrior. He was the King’s seneschal, one of Arthur's premier warriors as well as one of the first Knights of the Round Table. Kay is the son Sir Ector who was once known as Cynyr Ceinfarfog a local lord in Dyfed, who ruled the Cantref of Pebidiog from one (or all) of the three places called Castell-Coch (Caer Gawch) near Mynyw (St.

Saber's true identity is Sir Kay (サー・ケー, Sā・Kē?) or King Caius (キングケイ), one of the Knights of the round table.

Oblivion servant of the dawn