I am the Last Villainess He Has to Kill

Hongyeon Kim has spent her afterlife enduring an endless stretch of boredom. When a novel program is introduced to entertain the deceased, she eagerly seizes the opportunity to be transported into the pages of her favorite story. However, her excitement quickly turns to dismay when she awakens not as a heroine, but in the body of the narrative's ultimate villainess: the demon princess Bella. Desperate to fast-forward through the plot and reach the story's conclusion, Hongyeon attempts a spell to accelerate time. Instead of skipping to the end, the magic backfires spectacularly, hurling her ten years into the past. Now stranded far earlier than intended, she faces a daunting new reality. To finally escape the fictional world, she must endure fifteen long years trapped within it. Her survival depends on navigating a treacherous life among demons while taking on the unthinkable responsibility of raising the very protagonist destined to oppose her.