Guide to Promotion to Another World: Starting from the Failure of Stowaway

The time travel failed, and I became the ultimate bug in the world. While other time travelers were still excited about becoming mythical knights and writing legends, I already knew the truth: promotion was a scam, and the end of myth was to become the food of the world's will. Fortunately, my plug-in was stolen. I have the authority of a half-mythical knight, but I don't have any legends of my own. The world has lost its most important authority because of me, but my stupid witch is still wondering whether I raised her as a fool in the first place. It doesn't matter, I'll fix this bug.