I Asked You to Repair a Bronze Sword, but You Actually Restored the Fate of the Country?

I, Qin Xiu, am a sociopath who just wants to talk to cultural relics. It wasn't until an organization called the "Historical Correction Bureau" came to my door that I realized something was wrong with the world. History is being polluted by "entropy" from the future and "tamperers" from parallel universes. And my golden finger is the only antidote - [Best Repair System in History]! Repair the Warring States Bronze Sword → Obtain [Future Energy Core x1], improve the status of the correction bureau by 100%! Repair the Ghost Ship of the Song Dynasty → Absorb [Dimension Engine Fragment x1], unlock "Cause and Effect Tracking", and triple the combat power of all agents! Repair the country-protecting dragon vein array → Control the [Dimensional Balance Law], 749 rounds of MAX authority, and the country's luck increases tenfold! Repair the Terracotta Army Soul → Capture the [Parallel Universe Crystal] and unlock the "Causal War" module! Tamper: "All you repair is matter!" Me: "No, what I am repairing is cause and effect, the five thousand year historical foundation of the entire China!" My goal is to build a universe that is absolutely stable and unshakable in the "best state in history"!