When the purple aurora tore the global sky and cracks in the parallel universe appeared like festering wounds all over the world, the border city "Iwaki" became the first isolated island to be submerged by strange creatures. The military's order to evacuate was like a death sentence, leaving 300,000 residents abandoned among the expanding rifts and roaring alien creatures.
Lin Yan, a former biologist, searched for his missing sister in the ruins with mutated experimental data; Lu Chen, a veteran, clutched his rusted military badge and used bullet casings to carve the 173rd line of defense on the city wall. When the residents used fire axes to split the scales and tied the void worms with cables, Lin Yan discovered that it was not just monsters pouring out of the cracks - the energy that distorted the rules of physics was quietly rewriting human genes.
They must uncover the truth behind the cracks before the alien creatures break through the last line of defense: Why is Iwa City the area with the most dense cracks? What were the "samples" the military took with them when they evacuated? And are those who survive the energy radiation a hope for evolution or a precursor to destruction?