Moebius



This demon is the leader of Labyrinth who wishes to rule all worlds, thinking of all his subjects to be only mindless pawns.

History
He grants the members of Labyrinth their items. In episode 49 it is revealed that the Moebius we have seen throughout the series is just a robot. The real Moebius is a supercomupter that hypnotised it's creators i.e. the people of Labyrinth.