In 2025, 18-year-old Cao Xinyi gets into a traffic accident while riding a shared bike and unexpectedly transmigrates 19 years into the past, to 2007. When she wakes up, she finds herself in an era when the Shamate style is all the rage. She meets her 25-year-old mother, Liu Yun, and tries to tell her who she is. But Liu Yun, who trained in gymnastics, mistakes her for a mugger, takes her down with a shoulder throw, and calls the police. Later, seeing how pitiful Cao Xinyi is, Liu Yun agrees to let her stay for the time being.
Drawing on her knowledge of the future, Cao Xinyi buys AJ sneakers cheaply at a secondhand market and sells them at a high price on a commercial street, using a sales pitch like the "998" TV-shopping ads. She earns her first pot of gold, leaving Liu Yun astonished. But Liu Yun suspects the money came too easily and that the shoes were obtained dishonestly, so she searches Cao Xinyi's backpack while she is asleep.
Next, Cao Xinyi plans to enter e-commerce with Liu Yun and open an online shop on Taobao to sell secondhand goods. At first, nobody pays the store any attention. She promotes it on forums and QQ groups and finally gets her first order, but the product doesn't meet the customer's expectations, earning them a bad review. With no other choice, she agrees to a return and even pays the postage herself, taking a loss. Despite the setback, Cao Xinyi doesn't lose heart. Drawing on her memories of future business opportunities, she takes Liu Yun through one investment and startup venture after another. Their attempts are full of mishaps and laughs, alongside the complications and reconciliations in their family relationship. Every apparent success brings a new crisis and twist, while the threat of Cao Xinyi disappearing continues to haunt her, with an even greater secret seemingly hidden behind it... Throughout it all, she works to change her mother's fate and make her the richest person in the world, while trying to uncover the truth behind her transmigration and the threat of her disappearance.
