To be born knowing when you'll die is not a blessing, and yet, we dream of knowing what the tomorrow may bring. Generations have passed after we failed to avert the collision of a mysterious object with Earth, its debris leaving a dust that covered the sky in a bright electrifying color, and dispersed a disease that slowly reduced all organism lifespan. Leaving their underwater safe haven, Kaidan and his small team embarks on a journey across the world with a possible solution to it, just to find out that we now control that which afflicted us for so long, birthing new technologies and ways of living... but still living a fleeting life, that every generation get shorter and shorter...