18-year-old Tangtang is recognized back into the Shen family, but is misunderstood and leaves home due to an earring controversy. Having nowhere to go, she is taken in by six kind-hearted young men and continues her schooling with their help. During a shopping trip, Tangtang discovers that the Shen family's supermarket charges different prices for the same goods to different users. Together with her six foster fathers and community residents, she preserves evidence, checks data, and reports the problem in accordance with the law, promoting supermarket reform and gradually bringing the misunderstandings of that year to light. In the end, she stays by the side of those who truly care about her, running a small restaurant together and starting a new life.