27-year-old Zhou Ning reluctantly lends her newly purchased SUV, just three months old, to her cousin Zhou Hao for a wedding because she wants to keep the peace among relatives. However, without her knowledge, Zhou Hao secretly uses the vehicle for multiple paid wedding car services to make money. After drinking, he even allows someone else to drive it without permission, resulting in an accident in which a person is struck. Afterwards, Zhou Hao not only conceals the truth but also tries to make Zhou Ning use her own insurance to cover the losses, emotionally blackmailing her by invoking their family ties and past favors. Zhou Ning gathers all the evidence and refuses to be pressured by family obligations, resolving the matter through mediation and establishing clear responsibility. Zhou Hao compensates for the losses and publicly clarifies what really happened. After this dispute, everyone finally understands that even relatives must respect boundaries when it comes to property and personal conduct.