Cheon Yeo-Woon, the illegitimate and discarded heir to the notorious Demonic Cult, survives each day under the shadow of a death sentence until a mysterious visitor from the future changes his fate forever. Saved from a brutal assassination by a descendant who injects him with cutting-edge nanotechnology, Yeo-Woon is suddenly gifted with a computational mind capable of scanning ancient techniques and accelerating his martial growth to superhuman levels. He must now brave the lethal Demonic Academy, a political battlefield where his ruthless half-siblings and the influential Six Clans plot his immediate downfall at every turn. While the machines within his blood offer perfect precision, Yeo-Woon must find the internal strength to balance this cold logic with the burning passion of his own human spirit. As he uncovers the deep-seated conspiracies that claimed his mother’s life, the stakes escalate from personal survival to a struggle for the very soul of the Murim world. Every hard-won victory brings him closer to shattering the corrupt hierarchy that once viewed him as disposable. Driven by an iron will and the precision of future science, he marches toward a singular, unwavering goal: to claim his birthright and rise as the ultimate Lord of the Demonic Cult.