Thanks to the heroic deeds of the Phantom Wolf King, Sha-Lau, Kazuhisa Kaya and his allies were able to defeat one of the formidable Four Four Heavenly Kings, Aga-Su. But at the very place where they thought they had emerged victorious, another of the Four Heavenly Kings appeared – the Black-Winged Mad Wolf, Algrafth. As Kazuhisa faced the relentless onslaught of these powerful enemies, he teetered on the brink of despair, unaware of the deeper intent of the Four Heavenly Kings…