Rebirth in the Apocalypse: the Cannon Fodder Heroine Awakens

[Rebirth + Space + Group Pet] The heroine has no system Shu Zining died and then came back to life, only to find that the world she lived in was just a book, and she was just a cannon fodder female supporting character in the author's works. Yes, Shu Zining is just a little cannon fodder, oh no, she is a cannon fodder with a strong presence. Shu Zining's name will appear from time to time from her appearance to the finale, but in fact she died less than a third of the way through the book. The reason why she has such a strong presence in the book is mostly due to her best friend Wen Yueran, a vicious villain who jumped to the finale. After her rebirth, she became the first awakened person in the world. The first thing she had to do was to collect supplies and live well. The rest was just a matter of taking one step at a time! Later, she discovered that the male and female protagonists were just "emotionless" tools...