That day, the sun set and never rose again. For ten thousand years, the world lay in eternal night, and the survivors clung to life with the help of "fire springs." When the young Ye Chen crawled out of the ruins, a wisp of golden flame appeared at his fingertips. It was the last ray of light the sun, which fell ten thousand years ago, had left for humanity. Following the traces of the fallen gods, he traveled north, crossed three thousand miles of the Sea of Obsession, and reached the place where the sun had fallen. Then he discovered that the sun hadn't fallen. It had been eaten. And the thing that ate it was still alive.