Pandemonium is a major antagonist, with the Pure Concept of Chaos.<br /> <br /> The daughter of Countess Libelle and older sister of Manon Libelle, Pandemonium is a Lost One that became one of the Four Major Human Errors with her Pure Concept of Chaos. <br /> <br /> Described by her mother as a bright girl &quot;full of energy&quot; who adores singing and dancing, Pandemonium is cheery and playful, though with her Pure Concept and becoming a Human Error, she has no memories or identity associated with her previous self. Rather, her sole purpose has transformed into inflicting as much chaos as possible. <br /> Her mother also commented that Pandemonium loves movies above all - after becoming a Human Error, Pandemonium states that she loves horror movies and strives to replicate them, likely due to her Pure Concept.<br /> <br />