Thirty years ago, the alien civilization numbered "Vega Nebula-Ω" collapsed due to unknown reasons, and the dark purple "stardust particles" produced reached the earth along with cosmic rays. At first, stardust only formed aurora in the Arctic Circle, and then suddenly fell on a large scale half a year later. Creatures exposed to stardust will undergo "distortion" (not zombies, but genetic recombination: such as "root beasts" entangled with vines, and "phantom butterflies" that can imitate human voices). If humans are not distorted, they may awaken the ability to "resonate" (weak connection with stardust or distorted creatures, no offensive technology equipment, the ability needs to be activated through stardust crystals).
