I, the One with the System, Unified the World

The world is thousands and thousands of years have passed. The nine supreme worlds were born, and at the same time, the masters of the nine supreme worlds were born on mountains of corpses and seas of blood... Many years later, the nine supreme realms led their subordinate heavens and worlds to conquer each other, and the calm lake surface once again caused waves. —————— Lu Yun traveled to the small world under the Nine Supreme Realms, and climbed to the Supreme Immortal Realm step by step, but was brutally murdered when he was about to fight against the Demon Realm. Before he died, Lu Yun threw a little bit of his true spirit into the thousands of worlds below. Let's see how Lu Yun conquered the nine realms and climbed to the highest level.