After Dressing up as the Protagonist's Brother, He Was Spotted by the Villain?

I, Su Yan, entered a bloody and beautiful novel and became the protagonist attacking the cannon fodder brother who has long since disappeared. System mission: to bring my brother and the protagonist together, otherwise he will die on the spot. I tried my best to assist and pushed my brother into the protagonist's arms. The task was about to be completed—— # I agreed to follow the plot to save my life, but the villain turned out to be crazy## What I took was a cannon fodder script, how did it become the villain's exclusive snack? # (Slight abuse, enter with caution)