You Say I'm Cannon Fodder, So I Must Be Cannon Fodder?

Si Ruoyi wakes up to find that she has been reborn, back at the age of eighteen, when the Si family has yet to be falsely accused and her loved ones and old friends are still by her side.

What's more, this time she can hear someone's inner thoughts. Her future apparently ends with her being sent to the countryside after seducing a man, where she dies a tragic death from illness. Those are the person's exact words: "A disposable supporting female character used as a tool to advance the romance between the male and female leads." Since Si Ruoyi herself has been reborn, of course she believes this person's words. She resolves not only to change her family's fate, but also to rewrite her own ending.

But she never expected that she wouldn't be the only one who had been reborn! What is this, a rebirth reunion?