The Book-Traveling System Allows Me to Conquer the Second Male Lead

Tang Yunyun never dreamed that she would choke to death while chewing a duck neck. After her death, she would enter a novel. The system told her that as long as she conquered the second male lead, she would get a chance to be reborn. Her identity in the novel is a vicious female protagonist who wants to marry the male protagonist. The second male protagonist likes the female protagonist, the male protagonist likes the female protagonist, and the female protagonist likes the male protagonist. Now the system asks her to attack the second male protagonist. Is the system trying to do something stupid? As long as the male lead is not mentally ill, it is impossible for him to be conquered by the vicious female counterpart. This task cannot be completed at all. But Tang Yunyun really didn't expect that the second male lead had something wrong with his brain...