Set in 2026 during the host terminal era, the story follows a Japanese salaryman and his 32-year-old wife, Emiko, as they watch the historic launch of NASA's Prometheus 1 spacecraft. Patrick Castle has revolutionized the global economy as a 30-year-old trillionaire and founder of Nautlix, whose GPSIS operating system powers 80 percent of the world's general-purpose AI standard across appliances, vehicles, and advanced robots like Evolve, Triton, and the human-piloted Hercules exoskeleton.

Amidst this technological leap, the global economy has entered a phase of resource weaponization and "Michelin diplomacy." Russia, having lost its energy leverage due to the rise of American deuterium-tritium nuclear fusion, has pivoted to weaponizing titanium and cutting off hostile nations like South Korea. However, this aggressive strategy backfires, handing Japan an unprecedented economic windfall.

As a processing superpower rather than a resource nation, Japan has stepped into the void through friends-shoring networks, supplying vital titanium sponge processed from Australian and Canadian raw materials to the United States, Britain, and the Five Eyes' newly formed Titanium Shield. With Japanese titanium embedded in both the Magellan 1 and the newly launched Prometheus 1, Emiko marvels at how Russia's resource hostage tactics inadvertently elevated Japan's industrial status. Standing together in the glow of the successful space launch, they witness how Japanese technology has conquered the stars, securing the nation's indispensable role in the modern high-tech economy.