Birthday: April 11
Height: 181 cm
Weight: 62 kg
Blood type: B
Kayneth is a nobleman and a renowned mage from the Magus Association. He was a prodigy among magi, possessing exceptional magical potential and skills. Despite his young age, he held the title of Euryphis lecturer within the Clock Tower, a prestigious mage academy. His lineage, tracing back nine generations, further elevated his status. His magical abilities were centered around wind and water elements, and he excelled in summoning, alchemy, and spiritual evocation.
He was also a teacher to Waver Velvet and was responsible for rejecting and tearing up Waver's radical thesis on magical potential. This act directly led Waver to retaliate by entering the Fourth Holy Grail War after stealing a valuable artifact from Kayneth.
Lord El-Melloi is arguably the most skilled Master in the Fourth Holy Grail War in terms of magical ability. He excels in magic involving mercury, which he uses to create various attack and defense forms, such as barriers strong enough to resist point-blank Claymore Mine blasts and flying blades capable of slicing through stone walls. His mastery of enchanted mercury allows it to react without his conscious control, forming shields against surprise attacks. Kiritsugu Emiya initially regarded Kayneth as one of the two most threatening magi involved in the war alongside Tokiomi Tōsaka, though neither were considered the most dangerous participants.
Kayneth is engaged to Sola-Ui Nuada-Re Sophia-Ri, the daughter of the head of the spiritual evocation division, through an arranged marriage. While Kayneth loves her, Sola-Ui despises him, viewing him as a coward for not attacking opposing Masters face-to-face.
In the Fourth Holy Grail War, Kayneth serves as the Master of Lancer. His participation in the War is primarily to increase his prominence within the Magus Association. His initial base of operations was located at the Fuyuki Hyatt Hotel, protected by twenty-four layers of barriers, numerous summoned monsters, various traps, and mystical spatial alterations in the lobby.
