Being twins is their original sin.
The earth split apart, civilization disappeared, and humanity struggled to survive among the ruins.
Only after the heroine had suffered betrayal and death, and her personality had become twisted, did she gradually discover the truth about this world.
But why does the tone feel a little different?
"Why is it your younger sister?"
"No particular reason."
"But I want to pursue you."
Shi Yu'an stopped in her tracks. "...You're underage."
"So I can when I'm an adult?"
"No."
"Then why do I even have to grow up?"
Theme: The savior and the one who is saved
There are still many shortcomings, comments are welcome