Jacqueline Miranda svent Halevy, or simply "Jack," is a supporting character in the story, "A Devil's Life Is Such A Chore." Despite her child-like apearance, Jack has been alive for several years, due to the effect of a spell gone wrong. She is a powerful mage contracted to Sabraem Belphagor, who later became her guardian after her family was killed by the spell gone awry.