The fourth season of AOTU Shijie returns to AOTU World, the ONA action fantasy with science fiction elements. A god made this world and appointed the 7 Oracles to govern it in his name, fixing every person's station, from wealth and freedom to poverty and servitude. Mortals cannot resist that order, but the AOTU Contest gives them a chance to change their fate. Contestants rely on special abilities granted by the Contest System, along with their own wits and courage, in the hope of winning and becoming ruler of the world.