When she opens her eyes, modern-day girl Jiang Yi finds herself transformed into a servant registered as property of the Xie household, assigned as a bedchamber maid. She has no freedom, no money, and could be sold off at any moment! Determined to buy back her freedom, she starts selling spicy strips, milk tea, grass jelly, and iced drinks within the walls of wealthy mansions and palace gates. From a lowly maid at everyone's mercy, she manages to earn over two hundred taels of silver. But just as she saves enough money, her account book becomes evidence of her allegedly selling goods privately, amassing wealth, and plotting to escape the estate. Hongyuan lays traps, a commandery princess schemes against her, and the cold-faced young master Xie Yanhan keeps tightening his grip. Will the money she earned with her own hands bring her freedom, or become her death warrant?