Fitter in the Republic of China

What kind of turmoil will be stirred up when a modern high-level fitter returns to the Republic of China? Will the wheel of history change its direction because of this different dust? Is the tide of the times really unstoppable? There is no system in the real world. If you go back to the past, you can only rely on your own hands and knowledge. Should you rely on your own hands to create a nuclear bomb world, or should you join the battlefield and become an insignificant screw? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.