A soul from a thousand years in the future transmigrates one day into the body of Li Yuan, the second son of the Tang Crown Prince! But the place where he is reborn is the empire's most remote and blood-soaked frontier: Anxi's Kucha City. Waiting for him are Anxi veterans, all white-haired yet still holding fast to the Tang banners; the steely commander Guo Xin; and Guo Youning, the silver-spear-wielding female general who saved his life but treats him like a lecher.
Tibetan hooves descend like storm clouds, and the isolated city teeters on the brink of ruin. Setting aside his princely status, Li Yuan quietly puts his extraordinary foresight and resolve to work. He improves weapons to overcome stronger foes, exposes traitors to restore morale, and devises ingenious ways to solve their food shortages. He helps Guo Xin turn the tide from desperate defense to bold attacks, leading the isolated Anxi army as a razor-sharp spearhead in surprise assaults on Tibet. They fight through rivers of blood to reclaim the lost cities of Yanqi, Shule, and Khotan, one by one!
After decades of silence, the four Anxi garrisons shine once more under his hand! Li Yuan also governs with dedication, encouraging farming, opening trade routes, and strengthening the army. He transforms scorched earth into a prosperous western frontier, rich in food and wealth and fortified with steel. Guo Youning's gaze, too, shifts from contempt to burning admiration and affection.
But Kucha is not the end. Once his strength is fully grown, Li Yuan resolutely leads his army east! The conspiracies shrouding Chang'an, the truth behind the plots that once framed him, the Crown Prince's fate, and the empire's deep-rooted ills all await this prince who rose from a mountain of corpses and a sea of blood. With Anxi as his base and an invincible army at his side, he will root out corrupt officials, restore the empire, and make the Tang dynasty reclaim its glorious age, whose light once shone across all nations!
Except for a lot of bullshit in the mid-term, it's still okay.