After a luxury yacht wrecks, fifteen wealthy heirs, top-tier influencers, and industry elites find themselves stranded on a deserted island shrouded in dense, unnatural fog. Panic quickly descends as the castaways clash over survival strategies, unaware that this seemingly ordinary island hides a reality-altering secret from the world of xianxia cultivation. For ten agonizing years, the young man Lin Xiao was imprisoned on this island by a supreme master, forced to endure solitude and brutal training. Having finally broken free from his bonds, he has achieved unparalleled cultivation mastery. Though he appears as a ragged, wild-eyed hermit, he is the island's sole true powerhouse—capable of taming spirit beasts, neutralizing lethal poisons, and wielding ancient mystic arts. Again and again, the desperate survivors stumble upon ferocious mutated beasts and fall prey to deadly snake venom. Each time, Lin Xiao steps in to rescue them—only to be met with scorn, mockery, and relentless disdain from the very people he saves. These pampered urban elites have no clue that the ragged outcast they so casually insult is none other than the supreme ruler of the island, a man carrying a decade of sealed grudges and the power to overturn everything they know. As the hidden thatched hut, the cosmic seal, and the true nature of the island's cultivation legacy are gradually exposed, a tale of mortal desperation becomes inexorably intertwined with the destined return of a cultivation sovereign.