After I Transmigrated into a Book, the Cannon-Fodder Heroine Stole the Male Lead's Script

Justice incarnate pretending to be a cannon-fodder villainess VS a beautiful, gentle, kind, and resilient female lead What do you do when you really transmigrate into a book and become a cannon-fodder villainess with the same name and a tragic ending? After dying in a car accident, Pei Xingyue transmigrates into a melodramatic CEO romance novel. When she realizes that, according to the plot, she's an idiotic, reckless, hopeless romantic of a cannon-fodder villainess who is destined to die by the end, Pei Xingyue gets a little depressed. How can a cannon-fodder villainess, whose favorite pastime is helping the male and female leads fall in love, survive bravely? As the female lead's "arrogant" rich-girl roommate, Pei Xingyue vows to get along with the gentle, beautiful heroine so she can live well and enjoy life in this world. But!!! The male lead of this melodramatic romance is an ignorant scumbag who treats the heroine as a replacement, constantly psychologically abuses her, and even plans to transplant one of her kidneys to save his white moonlight. Pei Xingyue had planned to keep her head down and survive, but she can't stand by and watch. She promptly gets the male lead sent to prison. Cheng Qi'an once thought that all the light in her life would disappear with her parents' deaths. Her beauty and resilience brought her no protection. Instead, they became the final straw that broke the camel's back, leaving her unable to breathe, yet unable to escape through death. Then her arrogant, overbearing roommate from her memories stood up for her, and from that moment on, Cheng Qi'an's life had light in it. P.S. A sweet story, with both love at first sight and love that grows over time. Theme: People must always believe in the light.