Seventy years into Earth's advanced era, humanity has transcended boundaries once thought unreachable. Space travel has become as common as air flight, lunar cities glitter beneath artificial skies, and digital consciousness interfaces blur the line between mind and machine. Amid this technological age stands Ryo Hayakawa, a talented systems engineer with an unshakable curiosity for the frontier of virtual reality. When his fellow scientist and close friend unveils a revolutionary project-an open-world full consciousness and body-dive game that promises complete sensory immersion-Ryo sees the birth of a new era in entertainment. Eager to experience history firsthand, Ryo invites his two closest friends: Kaito Shinomura, an adventurous pilot with a competitive streak, and Arisa Minami, a level-headed software specialist with doubts about tampering too deeply with human perception. Together, they enter the new digital frontier-Project: Etherion. But the moment they dive in, their excitement turns to dread. The logout function is gone. System commands fail. And when a player dies... their consciousness vanishes from the real world. Trapped in a world that feels more alive than reality itself, Ryo, Kaito, and Arisa must fight to survive in a shifting digital landscape filled with broken codes, rogue AIs, and hidden truths. As they dig deeper into the corrupted system, they begin to realize this game wasn't created for entertainment- it was built to test humanity itself. In a world where death deletes your very existence, survival means rewriting reality. Note: This is related to Death game of the fittest