Plumes of tar hanging in the sky, so thick you could probably scoop some of it out if you got close enough. It is always night under Nemuttemachi, the trail from the sky factories. Shantytowns are constructed anew every time the wind changes direction and relocates the sky. Inside the smoke, ever-shifting patterns of light move like dancing constellations, pale blue and yellow. It is said to emulate a night under the open sky in the times before light pollution. It is as if the heavy cover of black clouds cuts through the blue paste and reveals the real sky.