The Elf Kingdom of Silvan in the Dark Forest is crumbling under the curse of eternal night. Faced with the silent and terrifying secret attack by the "manipulator" alien ancient creatures, the Dark Forest is on the verge of collapse and destruction. The vision of the elite sentinel "Dusk Blade" who is gifted but suffering from photophobia has been completely distorted and eroded by the disease of the abyss, leaving only a vague sense of heat. The activation of the core device of the alchemical artifact "Dark Sun" tore apart his remaining sense of heat, transformed and evolved it into a sensory power that transcended the full spectrum. When the eternal darkness swallowed up the forest and all the elves became visual prisoners, Dusk Blade became the only one forced to "see" and saw the life key mark wrapped in the crystal carapace of the monsters. The arrow whistled through the throat, and the pale figure accurately killed the cooling crystals deep in the throats of one alien after another in the absolute darkness. The once light-hating elf gradually transformed into the "Lightless Shadow Hunter", a hunting death that no one could see in the eternal night. Behind the name whispered in the nightmares of the enemy is the endless blood and burden of Dusk Blade struggling with the tearing of senses and the continuation of the tribe. He must cut off the blood vessels of the controller's brood before he collapses and end this endless night.