In "Lady Does Not Let Sister Marry Poor Boyfriend," a woman disapproves of her sister's relationship with a financially struggling boyfriend. She believes that marrying him would jeopardize her sister's future and social status. Despite her sister's feelings and desires, the woman goes to great lengths to separate them, creating tension within the family. However, as the story unfolds, she learns valuable lessons about love, respect, and the true meaning of happiness. Eventually, she comes to understand that wealth does not define a person's worth and that her sister deserves the freedom to choose whom she loves.