After Ten Thousand Years in Seclusion, My Descendants Come Knocking from the Start

After Li Changsheng transmigrates to a fantasy world, he discovers that he can’t cultivate at all! How will he become a peerless expert after obtaining the System? Why does he retire to the mountains after founding hundreds of factions? And after ten thousand years of seclusion, why has Li Changsheng become a protective patriarch? It all begins on the day a young woman, whose sect is about to be destroyed, comes to seek him out…