Shen Zhaoxi receives only 800 yuan in monthly living expenses because her father, acting as the middleman, has been pocketing the 7,200 yuan her mother sends. She survives on steamed buns, keeps meticulous accounts, and saves money through part-time jobs, yet her entire family accuses her of spending recklessly. Then a series of crises unfolds: forged transfer screenshots, relatives blocking her university gates, and a leave-of-absence application forced upon her for a signature. Everything changes when a little gold lock reveals her father's secret, while her mother's bank statements provide undeniable proof that he embezzled both her living expenses and her grandmother's hospitalization fees. Mother and daughter join forces to expose the truth in the family group chat, dismantle his lies with recordings, and seek repayment in court. In the end, Zhaoxi gets a new computer and wins a programming competition. From then on, no middleman gets to pocket their money.