Things are looking bleak as Zatch and company struggle desperately against the gargantuan Demolt, the most ferocious mamodo in Zofis's private army. Zatch's ex-girlfriend from the mamodo world, Penny, decides to make the ultimate sacrifice, but will that be enough to ensure victory? And what's this? Is Zatch about to discover a new spell? Meanwhile, Sherry and Brago's emotional battle against Koko and Zofis is reaching its climax. Who will reign supreme?