Xuanji is an ancestor who has lived for thousands of years in the world of immortality. She holds the ancient secret book, but she died protecting the book, and her soul passed through the body of the most miserable orphan girl in the Dajing Dynasty.
The original owner's parents were dead, he was about to starve to death, he was bullied by his own race, and he couldn't even save half a piece of cornbread?
It doesn't matter!
As the chief designer of the apocalyptic fortress, her memory of infrastructure madness that had accumulated over thousands of years was instantly awakened!
While others were still nibbling frozen black-faced steamed buns in the snow, she drew random drawings, built a constant-temperature fortress, a water purification system, and high-yield grain fields, and turned a bad hand into a prosperous dynasty.
Oppression by powerful people?
An apocalyptic defensive wall traps the enemy and makes them unable to even touch the heroine's clothes!
Are the people cowardly?
The iron-blooded men were trained into elite warriors, and the down-and-out clan climbed to the top of power step by step, dominating the world!
The world laughs at her: Why should she care about an old, weak and orphaned girl?
Little did she know, what she held in her hands was the ultimate infrastructure black technology that could subvert the past and present!