No Throne? I’ll Build My Own by Masked Wanderer

In a world where strength determines the fate of nations and powerful dynasties survive by consuming weaker rivals, every prince of Great Qin must leave the imperial capital at eighteen to govern a fief of his own. Ying Chen, a transmigrator reborn as the empire’s sixth prince, expects nothing more than a difficult life far from the center of power. Then, only days before his departure, a mysterious system awakens. By completing its missions, he can obtain rewards capable of reshaping the balance of the entire realm—an unrivaled cultivation art, one hundred thousand elite White Horse cavalry, and legendary strategists and warriors drawn from history and myth. What begins as a remote fief soon becomes a gathering place for mighty generals and unstoppable armies. The overlooked sixth prince gradually acquires enough power to decide the future of Great Qin itself. With rival factions scheming inside the imperial court and hostile dynasties closing in from beyond its borders, Ying Chen has no intention of remaining an obedient regional prince. He will command his legions, crush every enemy in his path, seize the throne, and forge Great Qin into an empire built to outlast the ages.