Ye Yunli, a modern-day overworked office worker, transmigrates into the body of a spoiled young lady from the bankrupt Duke Huguo's household. By a twist of fate, she meets the Crown Prince inside a coffin, where he is pretending to be dead while secretly investigating a case. From then on, she becomes bound to a money-making system, starting businesses and paying off debts while outsmarting the powerful and influential. She writes popular fiction, opens a colored-glass shop, and rebuilds Rongzhou City, growing from a humble street vendor into someone wealthier than an entire kingdom. As she and the Crown Prince go from enemies to lovers, she helps him uncover the truth and bring down the mastermind behind everything, ultimately turning her fortunes around to become a Crown Princess with both handsome men and an empire at her command.