The most ridiculous thing in the wasteland: pick up a crystal, get an AI as a bonus, and receive a gender-swap package deal.
Lin Han thought her luck was hard to rate. On the one hand, she was the lowest-ranking scavenger in Ark Tower, picking through ruins every day to provide for her little sister. On the other, a strange purple crystal embedded itself in her body, granting her extraordinary powers and including a snarky old-civilization AI called "Number Zero."
There was just one problem: every time she used these powers, she took another step toward becoming "her."
"So either I die, or I turn into a woman?"
"Correction," Number Zero said. "You turn into a very powerful woman. Please be precise."
To protect her frail little sister, Xiao Man, Lin Han (later known as Lin Hanyu) fled the tower with her and plunged into the wasteland. An underground fortress from the old civilization became their new home, and the wasteland's various factions became their new neighbors: a cold-faced hunter captain, a cat-eared girl who was a humanoid weapon escaped from a laboratory, and a genius scientist who had defected.
In this wasteland, overrun with monsters and torn apart by war between the three towers, Lin Hanyu had to grow stronger. Not to save the world, but simply to let her little sister grow up in peace and to give the girls who had gathered around her a home to return to.
As for turning into a woman?
"Honestly," she said, looking down at herself, "I got used to it faster than I expected."
"Sis!" Xiao Man called from the fortress gate. "Sister Yelina and Bai are fighting again!"
"...Coming."