Shen Jinshu transmigrated into a book.
She became a universally hated cannon-fodder character: the lovesick airhead daughter of the General of the North's household, who wouldn't stop clinging to the Crown Prince. The original Shen Jinshu had done so much harm that even her own father wished she had never been born.
When she opened her eyes, the Crown Prince was publicly breaking off their engagement at the entrance to the general's residence. Onlookers surrounded them, pointing and laughing in her face.
The Crown Prince tossed their betrothal contract onto the ground and looked down at her. "Shen Jinshu, you aren't worthy of me."
Shen Jinshu bent down, picked up the contract, slowly tore it in half, and dropped it at his feet. Then she dusted off her hands and smiled. "Well said. Then as of today, I'm divorcing you."
The whole crowd fell silent.
No one knew that the airhead everyone despised had a master's degree in psychology and knew exactly how to play people.
She didn't cry, make a scene, or threaten suicide. Instead, she married the Crown Prince's half-brother, General Pei Jin, the man feared by the entire capital.
Who was Pei Jin? A ruthless killer, the cold-faced King of Hell, with so much blood on his hands that even the emperor had to show him respect. Every noblewoman in the capital went out of her way to avoid him.
The day Shen Jinshu married into the general's household, the entire capital started betting on how many days she'd survive.
Later...
After the Crown Prince's coup failed, he was dragged before the palace hall. He saw Shen Jinshu sitting beside Pei Jin, holding a cup of tea and watching him with a beaming smile.
"Your Highness, who do you think isn't worthy of whom now?"
The Crown Prince screamed like a madman. "You planned this! You married him just to get back at me!"