There Are Gods

For no apparent reason, I end up in an unfamiliar world and am suddenly told that I can't leave. To get out, I have to defeat the greatest Demon King, Zhang Xinzheng. Unlike every other transmigration story, there is no golden finger, no special equipment, and the world itself doesn't even have any clear rules. In this world that looks like a cultivation fantasy but has no immortals, I have to take risks to stay alive and complete challenges that seem almost impossible. And I chose all of this myself.