[Two Women / Reborn / Light Palace Intrigue / Revenge / Transmigrate into a Book / Alternate World]
A modern author transmigrates into the book she wrote, becoming a palace maid who does not survive past the third chapter.
The good news: she thinks she has the complete script and can avoid every deadly trap.
The bad news: the original plot has completely strayed from what she planned.
Worse, she even witnesses the Seventh Princess, whom she wrote to die, rise alive from the water and smile at her.
That smile sends a chill down her spine.
At last, she remembers the ending she wrote for the heroine:
The cold palace, with no one to claim her body.
Even worse, another heroine, whose kingdom she wrote into ruin, has set her sights on her too...