Before Beatrice and Ramona Benson were born, their parents Carl and Joy joined a cult which worshipped the King of Hell Paimon and sought to gain all-knowledge from him. When Romano was a girl, the cult evoked Paimon and sacrificed Ramona to him for the all-knowledge they sought; and Ramona's spirit afterwards became a dark entity which served as the house's personification of evil, and Ramona sought to kill as many in the house as she could to sustain her existence. (Ramona the Pest)