Geten

"I am Geten! The handsome Red Devil, and soon to be the one to end you!"

- Geten's typical introduction Soul Armour Knight Geten (神鎧纏最高戦士 (ソウル・アーマー・ナイト) ・外典 (ジェテン), Sōru Āmā Naito Geten lit. God Armour Clad Supreme Warrior Apocrypha), or simply "Geten" (外典 (ジェテン), Geten lit. Apocrypha), is the self-given title of a mysterious man who managed to steal a Soul Armour given to Lamia by Giselle Mercury, shortly before her and the Akatsuki's departure from their world. He goes by the title of Red Devil (赤魔, Akama), claiming himself to be on no one's side but his own, choosing to follow his own ideals thoroughly.

Despite his unclear motives, Geten appears to mostly remain a neutral force, never actively pursuing a fight against anyone, but rather going by his ideal of "doing what's best". He is viewed as a threat by the Magic Council, due to his power, thus he is actively hunted by their Holy Knights, much to no avail thus far.

Equipment
Red Demon Driver (赤鬼ドライバー, Akaoni Doraibā): The Red Demon Driver is Geten's Driver Belt, used to activate his Soul Armours. It is a white belt, possessing a red buckle, with a dark red symbol of a demonic, horned creature in the center, where Geten scans his rings on. They Red Demon Driver allows Geten to unlock the powers of the Super Soul Rings, and thus also allow him to transform into his Soul Armour Knight form. It was originally given to Lamia by Giselle, along with Super Soul Rings, however, prior to stealing it, Lamia studied, and according to her words, "tweaked" the Red Demon Driver, mixing Adamantium into its make up. With the combination of Adamantium into it, Geten's armours are the only known Soul Armours to possess Adamantium in their composition, alongside Soul Metal, creating a unique and powerful synergy. The Red Demon Driver has modified Geten's Magic Origin as well, upon first use. This new Magic Origin has been dubbed Crimson Abyss (紅鬼竜躍進 (クリムゾン・アビス), Kurimuzon Abisu lit. Red Demon Dragon Onslaught) by Geten himself, as it turns his magic power red in color. Its function is the same as normal magic power, allow Geten to utilize magic effectively and efficiently. However, it has the added effect of turning all of his magical attacks red in color, or shades of red, as well as having this new red magic power react differently to certain people. Towards allies, the red energy does no harm, and infact, can mend wounds and serve as a barrier of sorts, but to enemies, the mere presence of the red aura causes them to feel as if they are being burnt alive by acid.

Magical Abilities
Battle Cry (喊声 (バットルクリー), Battoru Kurī (Kansei)):

Darkness Magic (闇の魔法, Yami no Mahō):

Teleportation Magic (瞬身の魔法, Shunshin no Mahō):

Ring Magic
Ring Magic (指輪魔法, Yubiwa Mahō):
 * Super Soul Rings (超魂リング, Chōkon Ringu):
 * Red Ring (レッドリング, Reddo Ringu):
 * Red Senju Ring (レッド千手リング, Reddo Senju Ringu):
 * Red Dragon Ring (レッドドラゴンリング, Reddo Doragon Ringu):
 * Epsilon Ring (レッドエプシロンリング, Epushiron Ringu):
 * Crimson Xenoverse (クリムゾン ゼノバース, Kurimuzon Zenobāsu):

Soul Armour
Soul Armours (神鎧 (ソウル・アーマー), Sōru Āmā lit. God Armour) are specialized armours worn by various powerful warriors known as Soul Armour Knights (霊武騎士, Konbu Kishi); they are human or humanoid warriors who transforms from a natural human form using a Driver Belt into a superhuman form clad in the armour. The Knights secretly patrol their respective territories to protect civilians from demons. Armed with special magical equipment, the knights carry an eternal war to maintain the light over the darkness in the realm. Geten gained his Soul Armour by stealing it from Lamia's lab. He has managed to train, and supposedly master his Soul Armour in over a year's worth of training. While he was never seen transform into his Soul Armour, Geten evidently does so by scaning his rings on his Red Demon Driver, which triggers the transformation. The closest that has been seen was him switching armour forms quickly enough for his true identity to be hidden. When doing so, Geten's entire being is cloaked by a red aura, concealing his true appearance, which quickly formed into a red glyph, and the red aura solidifies on Geten's body, forming his Soul Armour, beginning with the helmet, the torso, the arms and finally his lower body. Once complete, crimson energy erupts from his being, revealing his true form, as well as blowing away anyone nearby. He becomes Soul Armour Knight Geten (神鎧纏最高戦士 (ソウル・アーマー・ナイト) ・外典 (ジェテン), Sōru Āmā Naito Geten lit. God Armour Clad Supreme Warrior Apocrypha).

Trivia

 * Geten has an unusual obsession with the color red, constantly reminding everyone it is his favorite colour. He goes as far as making sure most, if not all of his techniques, clothing, and even food and beverages, are in someway related to the color red.
 * Geten's concept as a mysterious individual who stole a powerful suit from the protagonists is inspired by Red X from the Teen Titans animated show.