I Became a Cultivation Cheat in the Space Age

[One female lead, possibly with a coming-of-age focus; sci-fi; no System; fantasy elements; primarily sci-fi; wasteland setting; climbing the technology tree and reviving civilization are the main plot; sci-fi farming novel] (The story follows the three laws of thermodynamics, with no characters getting dumber. The goal is to explain cultivation in a relatively scientific way.)

When Gu Han woke up, the familiar ceiling was nowhere to be seen. Instead, he found himself in a crude little shack straight out of a post-apocalyptic wasteland.

“Did I transmigrate?” Gu Han thought excitedly.

Suddenly, a wave of intense pain struck his head, and a mass of memories and knowledge flooded his mind.

“Ah, is my golden finger finally here? Let me see what I've got!”

A pile of equations he couldn't understand?

Incomplete engineering blueprints?

And a gigantic compressed file labeled “Artificial Spirit Root Blueprint”?

“What is all this?!”

“Wait, files? Why are there files in my head?” Gradually, Gu Han remembered: this knowledge was a precious legacy from the previous civilization.

And I am?

An AI core tasked with managing the legacy!

“What is all this?!” Just as Gu Han's mind was still a tangled mess, a disheveled girl who looked about eighteen burst in and collapsed on the floor, sobbing in pain and muttering words like “revenge” and “fate.”

Gu Han froze. So you're the protagonist, and I'm just your cultivation cheat!

After learning what was going on, Gu Han spoke his first words in this interstellar age:

“Are you my master?” And so begins the story of a girl and an AI vying for control of the universe.