Cultivation World? but I Am a Mechanic!

[Single female protagonist] [Most likely she won't get married] [Technological cultivation] [No intelligence reduction] [East-West compatibility] During the Third World War, heroes emerged in large numbers and heroes competed for hegemony. She emerged as a genius mechanic and became proud of the world. She is an orphan, with no background and no support. She has come here step by step, relying only on her extreme talent, unremitting efforts and determination for revenge. Finally, in the last battle, she tried her best to defeat the enemy who killed her parents, and she also fell into the abyss forever... When she opened her eyes again, she was unsurprisingly transported through time. Well, in that case, let's let go of the worries of the past life and live a good life, but... I actually traveled through time and became an elf lolita? No, there is something wrong with 11 points out of 10. It seems that my identity is not that simple! And what's going on when he becomes the subject of a terrible alchemy experiment at the beginning? The most important thing is that the tnnd here turns out to be a world of immortality + fantasy! But he is a mechanic! It doesn't matter, just start from scratch, and you must perfectly build your own big plan to light up the technology tree of another world! … So, when one day finally came, she faced the God of this world—— The god looked down at her with disdain. "How can a mere ant shake a mountain?" Faced with the other party's ridicule, she smiled. "Mountain? Then let me show you how fragile a mountain is in the face of modern technology!"