Pram is the youngest Overlord in the cosmos having managed to take over her father's Netherworld when she was only two. While she stands out for her ability to predict the future and her sheer level of power it is said that she possesses another rare ability among the Overlords, 'Shapeshifting' though no one can truly verify this. Rumors say that she has only used it once.
She is the one who rewrote the tome that caused the events of the game to unfold, though she later atones for what she does by helping Zetta in an attempt to bring Salome back but is cut down by Seedle. She apparently managed to survive somehow as she was seen again in Zetta's castle along with Salome, Alex, and Zetta questioning whether the mysterious 'The One' was a fake. It is also revealed that she can't actually predict the future but reads the Sacred Tome.
She is later referenced in Disgaea 2 appearing as the image for the Omega level Ice spell.
Source: Wikipedia, "Makai Kingdom: Chronicles of the Sacred Tome," available under the CC-BY-SA License.