Imagine a world of immortal cultivators, where power reigns supreme, and destiny is etched in blood and steel. But what if your destiny was… family? In *Starting as a Son-in-law to Establish an Immortal Family*, Lu Changsheng finds himself reborn into this turbulent Xianxia world, tragically lacking the innate talent needed to join a cultivation sect. Just when hope seems lost, he awakens a unique system: the more descendants he has, the greater his rewards. And the talents of his offspring? They become his own. Lu Changsheng, faced with his limited potential and humble origins, makes a life-altering decision. He chooses the path of a son-in-law, marrying into a cultivating family. Eschewing the typical path of endless battles and perilous quests for power, he embarks on a different kind of cultivation – the cultivation of family. While others dedicate their lives to mastering martial skills and seeking rare treasures, Lu Changsheng focuses on expanding his lineage. As generations rise and fall, as geniuses clash and empires crumble, the Lu family continues to flourish. The world changes around them, filled with demonic overlords and supreme cultivators locked in eternal conflict, but the Lu family endures. Slowly but surely, they ascend to the pinnacle of immortal power, their influence echoing through the ages. The legend of the Lu family patriarch becomes a timeless tale, a testament to an unconventional path to immortality. Will Lu Changsheng's gamble pay off, or will the tides of fate sweep away his dreams of an eternal dynasty?