[Transmigrate into a book + System + subverting tropes + substitute bride]
The legitimate eldest sister is betrothed to Prince Cheng. On the day of the wedding, however, she insists that her younger half-sister, Ruoruo, take her place and put on the bridal gown.
Armed with the script, Ruoruo refuses outright.
Do you think I'm an idiot? In the original story, you two clear up your misunderstanding and get back together, while I, the fake bride, get teamed up against by both of you and end up missing or dead. Are you setting me up?
But the System warns Ruoruo: “Deviating too far from your character and refusing to follow the plot will bring punishment!”
With no other choice, Ruoruo can only follow the original story down a road of no return.
