Avery Miller

Story
She is given the Crystal of Code by the High Council of Spirits, to protect the worlds. But as she battles the Void Spirit in dimension 603, she succumbs to the flattery of the Crystal demon, and lets herself be overcome by darkness. After changing sides she decides that she doesn't want to be the protector of balance anymore. She learns to control the Crystal Demon, and she travels the multiverse, exiled by the great spirits for eternity. The Spirits often try to take the crystal away from her, as she isn't the protector anymore.