Transported to a martial realm governed by leveling systems, Su Xing discovers the world revolves around Professionals—elite warriors blessed by fate who grow stronger by conquering dungeons and slaying monsters. He selects the obscure Cultivator class, only to find himself unable to gain experience or advance like his peers. Without the ability to level up, cultivation becomes his sole path forward, yet in an age where Spiritual Energy has withered and true Cultivators have vanished, even accessing this essential resource proves nearly impossible. After four years of university struggle, Su Xing remains trapped at the minor Qi Refining Stage, barely capable of completing his education. Fortune shifts when he awakens the Life Simulator—a golden finger ability granting him the power to preview potential futures by expending energy, then materialize cultivation breakthroughs, treasures, and insights back into reality. The simulations reveal a horrifying truth: the Foreign Race launches a catastrophic invasion that decimates humanity within days. Facing annihilation, Su Xing adopts a strategy of concealment and measured growth, secretly nurturing Spirit Plants, refining Elixirs, and advancing his Cultivation Level while elevating humanity's collective strength. Through relentless simulator use, he transforms into a formidable hidden master, orchestrating silent resistance against the foreign assault from the shadows. A tale centered on simulator mechanics, emphasizing cautious survival, resource farming, and subtle behind-the-scenes influence.