Leader of Trinity. Mebeth is a former Regent and one of the few people in Sheldar to have a 1/4 D-Ratio, He left the Regents for unknown reasons, assumed to be disgusted of the way they governed. He formed Trinity to expose the Regents' and the government's for the oppressive regime. In reality, Mebeth still works for the Regents and formed Trinity to serve as an outlet for the people's frustration to keep them complacent and prevent the general populace from rebelling.
Lin brings Ryu and Nina to meet Mebeth and teaches the group how to save Nina. Mebeth gives Ryu his key to open the door to the surface and tells Ryu he must obtain three more from the other Regents in order to reach his goal.