Kurozuka

In 12th-century Japan, the swordsman Kurou flees from terrifying pursuers into a dense forest with his loyal servant, Benkei. Desperate for refuge, they stumble upon the hidden home of the enigmatic and alluring Kuromitsu. Though she welcomes them kindly, she warns them never to enter her private chamber. Yet, drawn by curiosity-and perhaps forbidden desire-Kurou peers through the slightly open door and witnesses Kuromitsu drinking the blood of dead men. He discovers she is an immortal vampire and, consumed by devotion, chooses to become one himself to stay with her forever. But their bond is shattered when Benkei, secretly recruited by the shadowy Red Army, betrays Kurou and beheads him. Centuries later, Kurou awakens in a ruined, futuristic Japan. Determined to find Kuromitsu once more and take vengeance on the Red Army, he sets out on a relentless journey.