The survival of civilization versus an unknown corruption: On one side is modern human civilization, represented by the Great Xia nation. On the other is the “Mysterious Forbidden Zone,” which has descended across the globe with rules no one understands. This is not a war between nations, but a struggle for humanity's living space and future against higher-dimensional beings. The protagonist's victories and defeats directly determine his country's fate and fortunes. After footage of his first battle spreads like wildfire across the global internet, the protagonist, known as the “Sword Immortal,” becomes the hope and pride of Great Xia's people, as well as the foremost target of other nations' research and apprehension.