Traveling Through Books with My Brother, Why Should I Be the Cannon Fodder?

[Wearing books + wet men + hidden marriage + 1v1 sweet articles + entertainment industry] Yun Youyou worked overtime until ten o'clock in the evening. On her way home, she was killed by a book falling from the sky, and then traveled through time. On the first day of traveling through the book, I used the plot system to find her. As long as she completed the plot of the female supporting character Meng Xia, she would receive a mission reward of 200 billion. Hehe, these cows, horses and dogs won't do it! All he does is follow the plot! So, Yun Youyou once again worked as a cow for 200 billion, but the female supporting role was really frustrated by the plot and couldn't continue, the system told her that her two younger brothers had also stepped in. The eldest brother Yunzhong is transformed into Si Mingye, an important male supporting character in the book and the heir to a top wealthy family. The second younger brother, Yun Ting, is transformed into another important male partner in the book, Xu Ke, a top male star in the entertainment industry. Is this right? She's also wearing a book, so why is she the cannon fodder? !