Interstellar: The correct way to become cannon fodder in a book

Ye Sheng traveled through time?! After being heroically killed in the zombie tide, Ye Sheng's soul did not reincarnate as her master said, but became a cannon fodder in a novel called The Fourth Prince Ye Sheng: "?!" Are you sure? Are you sure! Not the protagonist! Not the villain! Not even a supporting role! Just a background cannon fodder who died young. Ye Sheng: "..." Ye Sheng said: Is it the fate of dying young in both the previous life and this life? Forget it, just go with the flow, and die young. Many years later, Ye Sheng looked at her strongest commander's medal and fell into deep thought. Well, not only did she not die young, she also replaced the male protagonist in the novel...