The world traveler from the future

The world, under the guide of the System, was prospering. The Dungeons gifted untold riches to those brave enough to challenge them, and the System watched and helped those who were willing to complete its Quests. But not Charles. As soon as he appeared inside a dark cave, the system told him that he was an anomaly, that he was not worthy of its gifts. His mind was damaged. His AI companion was convinced that he was in a world of sword and magic. All around, schemers and manipulators tried to play their part in a story that was thousands of years old. Spanning entire planes and worlds. And yet, he only saw what he wanted to see. For a while, it worked. Slowly, but inevitably, it became impossible. The threat was too big to ignore, the evidence too strong. He was just a pawn in a game so large that it was impossible to comprehend. At its center, the System. The System was not what it seemed. It was a tyrant, or maybe just a tool created by someone or something so powerful that it could control entire worlds. And it had declared him its enemy.