In the aftermath of the Freeport Space Station's catastrophic fall on Earth in 2041, known as the 'Great Cataclysm,' the once vibrant planet is now a desolate wasteland. Humanity, fighting amongst themselves for survival in a world ravaged by pollution, nears extinction. On a moon base, originally intended for Mars exploration, now transformed into a thriving metropolis named 'The City of Eden,' hope for a new beginning resides. Fast forward to 2267, where Takeru resides in Eden, engaging in adrenaline-pumping 'Tube Races' with hovercraft-like vehicles. After a race mishap, Takeru is assigned volunteer duties outside the city, leading him to a startling discovery that could unveil the mysteries surrounding Earth and the genesis of Eden.