In the Great Battle of the World, Who Will Rule the Ups and Downs?

This is a splendid world, in which the human race dominates the present world, and no race of any race dares to disobey! But the sea is constantly changing, and when the geniuses and monsters of all races are born, and the human race is busy with civil strife, the position of the ruler of the world is once again reversed... In this world, there is a young man who traveled from the sea of ​​​​stars and carried the Supreme System with him, and chose... To lie down! Unfortunately, when the system was fully loaded, all kinds of disputes came one after another, and the peaceful life disappeared. In order to continue to lie down, and to strive to live a better life, the young man could only become stronger. But as the system continued to upgrade, more and more truths emerged in front of his eyes. The young man had no choice but to carry a sword and ask the world: "Who is in charge of the ups and downs in the great dispute in the world?"