A new infection has spread around the planet, that turns people into undead. The story begins a few minutes before the first recorded case, and shows the struggle of six youths to survive this new world.

Can a genius strategy gamer protect a beautiful girl from another world—? Noa, a socially awkward high school student. Behind that facade, he is an ultra-popular strategy game streamer and a real-life masked military tactician. Feared as a “War God” capable of influencing the fate of the world, he is assassinated by a major power—but when he awakens, he finds himself in another world on the brink of destruction from monster attacks—!! With only a handful of forces—a magic warrior and a queen—under his command, the greatest commander in human history takes on the most difficult battle of his life.