Jiang Yushu, a modern-day overworked office worker, suddenly dies and transmigrates into a novel, becoming the greatest prodigy in the cultivation world in ten thousand years. Seven hundred years later, she has become the Supreme Venerable Moon Guide, guardian of humanity. Armed with the Dingchuan Bow and a single bolt of Purple Ultimate Lightning, she stands alone against powerful enemies from the Eight Realms. The Lord of the Divine Realm, the Demon Realm's Emperor, and the Master of the Nine Pivot Hall—all her old acquaintances—have returned. Some want to destroy humanity, while others want her to turn back. Even more unexpectedly, her two newly accepted disciples include the original novel's Dragon-Aotian protagonist and, incredibly, the world-destroyer who once annihilated the Upper Realm. Faced with romantic entanglements and the fate of the world, she chooses only one path: to protect humanity!