A character introduced in [[Guilty Gear]] [[Guilty Gear Strive|Strive]].

He is the main antagonist of the Story Mode and [spoiler]former mentor to [[Asuka R. Kreutz]], as well as the discoverer of magic and the dimension that makes it possible. He was transformed into his current being as a result of him discovering [[I-no]] in said dimension.[/spoiler]

He is a mass manipulator, influencing events from beyond the Backyard and controlling individuals such as [[Nagoriyuki]] with his seemingly limitless magic abilities. In gameplay, he primarily uses two [[handgun|handguns]].
ハッピーケイオス