Transmigrated as the Male Lead's Fiancée [Book Transmigration]

Su Xiaoxiao transmigrated into a book. She became the fiancee of a male supporting character in a melodramatic CEO romance novel. They even had the same name. To play along with the female lead's pure, innocent, universally adored persona, the fiancee turned into a vicious supporting woman. She did everything she could to help the male lead fall for the heroine, repeatedly sabotaging herself in the process. In the end, the male supporting character despised her, and the male lead killed her, leaving her to meet a tragic cannon-fodder ending. When Su Xiaoxiao arrived, the original owner was in the middle of her first scheme to catch the heroine alone with her fiance. The heroine would arrive in just ten seconds. Taking one look at her fiance, whose manner was cool and severe, Su Xiaoxiao stepped forward and decisively broke up with him. What kind of ridiculous plot was this? She had her whole youth ahead of her. Why would she go out of her way to ruin her life? Screenshot taken on May 8, 2019