The Healer Demands Payment! - Chapter 8.1: Part 1 Soul Oath (I)

The world ended, seven days of earthquakes, volcanic eruption and then came the meteor storm, bringing something worse—mutation.Now, survivors are group into Shifters, mutated humans and normals.Ava Zhang was supposed to be a Normal. Useless. Disposable.Thrown into a military-controlled bunker, she is sorted into Level Three—the bottom rank, where the weak are left to rot. Starving, overworked, and surrounded by desperate scavengers, she realizes that in this world, strength decides survival.But Ava isn’t as powerless her hidden System activates. The Blueprint System—an ability that lets her design and invent anything, from weapons to high-tech defenses.

200 years after the world has ended, the laws of society have long been forgotten.

Past life, her spirit root was dug out from her body. She had wholeheartedly dedicated herself to the just path, but she was sentenced as an evil demonic cultivator.

Returning back to her juvenile years, she turns the tide. Against natural order, she had been reborn. Those who had deceived and humiliated her, she would return it to them a hundredfold with additional thanks.

Studying her own blood vessels, she recasts the best quality spirit roots. She destroys those rascal clansmen and returned home with glory!

The rules of the world do not hold her down; this time around she kills through the righteous path.

He is the universally admired spirit emperor, high above others, cold, proud and aloof. But every night he sneaks into her room and takes liberties. “Little runt, won’t you think it over?”

“Do I have a choice?”

“You can choose from giving birth once or giving birth twice.”

“Why must I?!”

“Because you stole my heart.”

With the revival of spiritual energy and the breakdown of the order of species, it is a difficult test whether human beings can still stand at the top of the biological chain.

(There is already an old book, The Strongest Descends in the City, you can read it.)

- Description from novelbuddy