On the day college started, because she hadn't saved enough tuition and living expenses, college student Su Ling cut off her beloved long hair and took a part-time job at the school. Later, she collapsed in the cafeteria due to long-term malnutrition. After being hospitalized, she discovered that her older sister Su Yu had for years falsely claimed to be managing her living expenses on behalf of their parents, but actually embezzled all ten thousand yuan per month, using it to buy luxury goods, support a young boyfriend, run a show-off-wealth account, and even defraud relatives and friends of hundreds of thousands of yuan in her name. Amidst her parents' partiality and her sister's elaborately woven lies, Su Ling worked three jobs alone to make a living, until she decided not to remain silent anymore, using evidence to uncover the truth step by step, and finally sending her sister to court.