During a meeting with the Demon, himself, Von Leon, and Orchid, Arkarium mentioned they burnt down the Demon's hometown and killed his family. Upon learning that the Demon gave Mastema a letter to deliver to the Heroes, Arkarium attacks her/him and leaves her/him for death. She/He transforms into a cat in order to survive, looking for a way to revert her/his form and regain her/his powers.