I, the Weakest Emperor in History, Defy Fate and Seek Immortality in My Twilight Years

[Fantasy + longevity + invincibility + Emperor-style cultivation + myriad worlds + System] Wang Ling becomes the weakest Great Emperor in history from the start. In his twilight years, he is ambushed by a Supreme from a forbidden zone, and his imperial blood spills across the stars. Unexpectedly, he happens to meet the System's activation requirements and begins his counterattack on the path to immortality. He survives one lifetime after another, while the living beings of the Three Thousand Dao Provinces are driven to despair. Heavenly prodigies: “Lifetime after lifetime, I seal myself away in the source of life, and I’m nearly reduced to dry bones. How is he still not dead...?” Humanity: “The apocalyptic bloodshed is upon us. Why can’t the Human Emperor protect us? Is he alive just to keep living through one lifetime after another?” The Wang Imperial Clan: “Ancestor, if you can’t hold on, then stop fighting. We’ve borne the infamy for thirty thousand years already. Why not step aside and give our descendants a chance to become emperors?” Supremes from the forbidden zones: “The era of Wang Ling is our favorite. He’s weak, and the apocalyptic bloodshed can begin at any moment to replenish our vitality!” Faced with the resentment of the heavenly prodigies, the scorn of humanity, the Wang Imperial Clan’s ‘filial piety,’ and the arrogance of the Supremes from the forbidden zones, Wang Ling remained silent. Only after defying heaven through nine lifetimes and becoming an emperor did he shatter a forbidden land with one slap, open the barrier to the Immortal Realm, and stand alone for all eternity. “What did you say? Speak up! I couldn’t hear you.”