Song Qiaoniang, a wandering orphan, makes a living by kicking and performing Cuju in a house in Bianjing in order to raise a three-year-old adorable little dumpling. After accidentally saving the young prince of Prince Duan who fell into the water, she was involved in the government-run "Tianjin Cup" Cuju competition. She and her little tuanzi dealt with the gangsters in the market and solved the trap set up by a noble lady from an aristocratic family. She used her solid skills and quirky tactics to advance from the grassroots to the finals. During the process, he and the cold-faced competition supervisor Lu Chengyu went from mutual quarrels to heart-to-heart conversations, and the mystery of Xiaotuanzi's life experience was revealed - he was actually Lu Chengyu's legitimate son living among the people. In the end, the family of three stood on the championship stage as a "mother and son soldier" and became the legend of Bianjing Cuju.
