|Subtitle||The Devil's Incarnate (悪魔, Akuma?)|
|Current Owner||Kakumei Makuro|
|Previous Owner||Khlione Seigetsu|
|School of Ownership||Seidoukan Academy|
Diablo: The Devil's Incarnate (ディアブロ, Akuma?) is one of several Orga Luxes belonging to Seidoukan Academy. It is currently being used by Kakumei Makuro, with the outstanding compatibility rate of TBA. It was formerly used by Khlione Seigetsu whose compatibility rate stood at an 88.5%.
Diablo is known to be unnecessarily aggressive, often coming off as psychotic and demonic for his extremely pessimistic outlook on humanity. Diablo is known to be secretive and uncaring, often worrying Kakumei into believing that his Orga Lux may betray him. But under the guise of inhumanity lies an overprotective nature, often being very wary of outsiders talking to his master. Diablo also loves bloodshed, but can hold back his appetite if it means pleasing Kakumei.
Diablo is quite strange, as while he appears a sword to everyone else, he can materialize in front of his master as a human. As a human, he has dark blue hair, as well as several face markings and a strange pupil dilation. Unfortunately, only Kakumei can see Diablo's materialization, so everyone else only sees a black and gold blade.
Diablo's main function is to manipulate fire, which Kakumei utilizes in many of his spells. Diablo can also materialize itself before it's master at any time. Diablo, however, actively drains it's users Prana, making it hard to count on for constant use.