Hilda is the leader and one of the founders of Amnesia, creating it under the belief that In-Births like her deserve to use their powers freely. She serves as the secondary antagonist within the story. Hilda is very pompous, arrogant, vain, ambitious, and insists that others should either serve under her or suffer the consequences and swears revenge on those who defeat her. The current ability that Hilda wields is the EXS of Light and Darkness: Paradox, the same name as her title.