Revolutionary Man

We don't know what we are doing in another timeline, and everything in this world is all because of things brought by God... Although the humans here live long, they are still suffering. Because this is an era of great chaos. Some people say this is the best of times, while others say it is the worst of times. And there is such a person who is involved in the chaos... (Note that the protagonist will first pacify the world, and then reform. Before that, it was a feudal society.)