The plot and genre of "A Self-Saving Manual for Female Supporting Dressed as Cannon Fodder" matches the information given, so I recommend this novel to you. The novel told the story of Mo Xiaoqi, who had transmigrated to become the future vicious supporting actress's best friend and secretary. In order not to become cannon fodder, she returned to high school and tried to make a comeback. I hope you like this fairy's recommendation. Muah ~😗