Oblivion (ۆبللڤلۆن in Demonic) was the Lord Of All Demons, elected by Hell's Congress to be the planet's leader.
Oblivion was elected Lord Of All Demons before Torn's birth.
When he learned the Demeter's forces could learn the coordinates of the Dragon Tomb on Zagmuk, he dispatched two Demons to kill the humans and recover the coordinates. He believed that the coordinates had been lost, while instead they were kept a secret by Torn.
Years later, Oblivion ordered Torn to kill the entire population of Myridia. When Torn refused, Oblivion exiled him from Hell and accused him of treason, sending Torn's daughter Laceration to bring him back. When Laceration failed, Oblivion sent her mother Agony to finish the job and bring Noriko Null to Hell as well, where he separated her from Abyss.
Later, Oblivion hosted the Assembly Of The Nine Gods that discussed Noriko Null's actions. When he tried to talk with her at the end of the Assembly he made the mistake of interrupting Inanna: the goddess casually decapitated him, killing him on the spot.
He was succeeded by his old political rival Vice.
Oblivion's powers stem from his alien Demon physiology and his connection to the Blood, an energy field that connects all living creaturs.
Superhuman strenght, durability and reflexes: Oblivion is far stronger than any human.
Redundant organs and healing factor: Demons are exceptionally hard to kill with conventional means, thanks to redundancies to vital organs and fast healing times
Resistance to mind attacks: Demon minds are different enough from human minds to make telepathic attacks more difficult
Energy constructs: By accessing the Blood, Oblivion can generate at will solid constructs.
Portal generation: Through his "Stairwell to Hell" tecnique, Oblivion can cut a portal directly through the Blood.
Increased lifespan: Demons age approximately four times more slowly than humans. Oblivion was already Lord Of All Demons before Torn's birth, meaning he was an adult 140 ago