This book is also known as "The Fifth Natural Disaster"/"Rebirth but with a Change of Sex, Determined to Be the Strongest"
[The end of the world + no male protagonist + system]
Ling Yu found that he was reborn, but what was shocking was that he turned into a girl and had a system. However, because of the regrets in his previous life, Ling Yu vowed to protect his sister in this life and survive in this apocalypse...
Give yourself a review [laughing evilly]