Yu Chuxia, a modern female college student, stayed up late to read a Republic of China sadomasochism novel called "Love in a Fallen City". She was indignant at the ending of the book in which the heroine Yu Chuxia was harmed by the scumbag Ji Mingyuan and her family was destroyed. After falling asleep, she accidentally traveled into the world of the book and became the eldest lady of the Yu family who had just been engaged to Ji Mingyuan. When she first met Ji Mingyuan, she pretended to be shy and meek.
She has begun planning in her heart how to reveal his true identity. The system "Nemesis" appears and tells her that she must complete the mission of revenge before she can return to the real world.
