Villain, Spare My Life: I Just Want to Survive This Novel!

She thought rebirth was her second chance—until she realized she'd been reborn into a novel as the villain's punching bag. Determined to rewrite her fate in this impoverished era, she works tirelessly to build a better life. But there's one problem: the male lead keeps sabotaging her at every turn! Why should she pay for crimes the original character committed? And why does this infuriating man, who once swore he'd rather die single than marry her, now refuse to leave her side?