In a world torn asunder by the emergence of mysterious gates, humanity faces an existential crisis. These gates, shimmering portals between dimensions, have unleashed an onslaught of demons, angels, mythical beasts, and horrors only whispered about in nightmares. Within hours of their appearance, nearly half of humanity is wiped out, and cities crumble under the chaos of this multidimensional invasion. Caught in a cosmic crossfire, the survivors discover a new, terrifying reality. The gates do not just bring monsters; they also channel an ancient, forbidden magic into the world, altering not only the environment but humanity itself. Magic, long considered mere fantasy, becomes the key to survival. Some humans awaken to newfound abilities, manipulating elements, light, darkness, and even life and death. The strongest among them rise, forming guilds that wield their power to seize control over fractured territories and maintain a fragile peace. In America, the Elite Dungeoneers (ED), the most powerful of these guilds, use their magic to explore dungeons—treacherous realms that form around the gates. Here, they seek riches, arcane knowledge, and dominance. The world is reshaped by these guilds, but the gates remain, constantly spewing forth new threats. Desperate for survival, some humans even make pacts with the otherworldly creatures, further blurring the lines between ally and enemy. In the midst of this chaos, one man’s story unfolds—a former Special Forces medic who lost his arm in a brutal mission. Haunted by his injury and driven by an obsession with the boundary between life and death, he takes a job in a morgue, where he discovers he has the power to communicate with the dead. Over time, he learns to manipulate the lingering energy of death itself, becoming a necromancer of sorts. His unique abilities catch the attention of the Elite Dungeoneers, who recruit him for his rare skillset. As a researcher and practitioner of forbidden arts, he delves into dungeons, where he uses his necromantic powers to sense traps, understand the anatomy of nightmarish creatures, and unravel the secrets of rogue Casters. His work is dangerous, but it feels like destiny—a calling to master the mysteries of life’s end and use them to save humanity from the brink of annihilation. Five years after the gates first appeared, he discovers a new and unexpected power—the ability to regenerate his lost arm using a blend of dark and holy magic. This rebirth symbolizes his transformation from a man driven by grief and loss into a being who embraces the chaotic magic of this new world. With a renewed sense of purpose, he seeks to harness the power of death itself, standing at the threshold between life and death, and choosing who may cross over. As the world teeters on the edge of collapse, the gates continue to widen, threatening to consume all. Amidst the turmoil, this unlikely necromancer finds himself wielding powers that could either seal humanity’s doom or be its last hope for survival. But in this fractured reality, where ancient magic clashes with modern technology, the future belongs to the bold—those willing to embrace the chaos and step into the unknown.