A thousand years ago, the Yokai World was consumed by war. Powerful clans fought for dominance across ancient Japan. Among them, none was more feared than the legendary Fox King, Kitsune-Ō, an immortal ruler blessed with nine tails and unimaginable power. Stories claimed that he betrayed the world and tried to conquer every clan. To stop him, the great Yokai armies united and sealed him beneath the Sacred Moon Shrine. For a thousand years, the seal remained unbroken. Until now. Far from the ancient legends, a young Wolf Clan warrior named Ren trained alone in the forests near Silver Fang Village. Unlike other warriors, Ren was more interested in exploring ruins and uncovering forgotten secrets than chasing glory. One evening, while returning from training, he noticed something strange. The moon above the forest had turned crimson. A cold wind swept through the trees. Then he heard a distant scream. Ren immediately ran toward the sound. Deep inside the forest, he discovered an ancient shrine hidden beneath tangled roots and vines. The place looked abandoned. Yet a strange blue light was glowing from within. As Ren stepped closer, he noticed massive cracks spreading across a stone monument in the center of the shrine. Ancient symbols covered its surface. Suddenly, a voice echoed through the darkness. "At last..." Ren froze. The voice sounded old, powerful, and terrifying. "After a thousand years..." The cracks widened. Blue fire erupted around the monument. The ground shook violently. "What is happening?" Ren whispered. Then the monument shattered. A massive wave of energy exploded across the forest. Trees bent under the pressure. Animals fled in terror. And from the center of the blue flames emerged a tall figure. White hair. Golden eyes. Nine enormous tails moving behind him like living shadows. The stranger slowly opened his eyes. For the first time in a thousand years, the legendary Fox King stood beneath the moon. Kitsune-Ō looked toward the sky and smiled. "The world has changed..." His gaze then shifted toward Ren. The young warrior instinctively reached for his sword. But before he could attack, Kitsune-Ō spoke. "You carry an ancient scent." Ren's heart raced. "What are you talking about?" The Fox King stared at him for several seconds. Then his expression changed. Almost as if he had recognized something impossible. "The Moon Wolf bloodline..." Before Ren could ask another question, a powerful shockwave erupted from the Fox King's body. Blue flames spiraled into the sky. Across Japan, Yokai leaders suddenly felt the same terrifying energy. The Fox King had returned. And with his return, the peace of the Yokai World was about to end. As the moon glowed red above the forest, Ren realized his life would never be the same again. The first chapter of a new war had begun.