Three years after Chu Ran married into the Hou Mansion, everyone thought she was a merchant girl who clung to the powerful. She fills in the gaps for the Marquis Mansion, manages the farm, and manages the warehouse, but in return she is treated with contempt by her mother-in-law and scheming by her clan relatives. On the day of the house raid, her mother-in-law forced her to hand over her dowry, and her relatives pushed her to share the old debt. Even her husband Pei Jibai was implicated in the old case, and his life or death was uncertain. Everyone thought she could only bow her head and accept her fate, but Chu Ran opened the second account at the bottom of the box. The Hou Mansion's deficit, the farm's secret accounts, the bank accounts of favors, and old cases all have their place. She didn't cry or beg, she didn't accept her fate, she only relied on her account book to break the situation. Some people asked her to be the wife of the Marquis who was buried with him, but she wanted to be the one to settle the old situation. From the back house to the court, from dowry to old cases, this time she wants to make everyone who owes her pay back with interest...