The CEO Feels My Pain

Nina Everett transmigrates into an angst-fic, bullied by male lead Julian Forrester and Sylvia Gordon. She gains a Sensory Swap ability with Julian: her injuries reflect onto him. Nina uses this to make Julian experience her suffering and see Sylvia's true colors. Her fake heiress identity is exposed. Julian regrets, but Nina divorces him. She completes her mission, returns to reality with a ten-billion-dollar reward, and the book's world is rewritten.