Long-distance freight driver Zhou Wanqing spent all she had for ten years to support her younger brother Zhou Mingda in completing his doctorate. But at her brother's graduation banquet, her family identity was erased, and her brother even arbitrarily made her assume the monthly mortgage for his bridal home. A cold-hearted Zhou Wanqing stopped her funding and took back the lent RV. Instigated by his fiancée, Zhou Mingda used his sister's materials to borrow money and fabricated an inheritance lie to demand wealth. As the storm settled, he confessed his faults and bore legal responsibility. A year later, they reunited at a gas station, where the brother worked to repay his debts, and Zhou Wanqing picked up her studies again, guarding the boundaries of family affection and moving forward respectively.