Earth suffered a devastating defeat in a war against the cosmic rulers, the Dalmya Star Cluster, and was placed under their control. On the surface, peaceful negotiations appeared to be taking place between the Dalmya leaders and Earth's government, maintaining an illusion of harmony. In reality, however, humans were being used as livestock for the Dalmya aliens, silently slaughtered in their daily lives. Police and Self-Defense Forces were powerless to save them, and a deep, lonely darkness spread across the planet. Yet one person rose up. Standing against the Dalmya invaders and challenging them in combat was Shiragane Mia, the sole survivor of the Holy Knight Squadron Blade Five—Whiteblade. Continuing her solitary battle, she stirred the hearts of humanity and sparked a global resistance movement. Fearing her growing influence, Gelde, the Dalmya Star Cluster's regional commander in Japan, resolved to create the strongest and most monstrous villain to destroy Whiteblade. In the end, she faced a tragic fate.