Qu Xiangnan (played by Jiao Enjun) is the head of the Quansheng Dojo. However, in a very important international competition, Qu Xiangnan was falsely accused of using stimulants. Not only was he disqualified from the competition, but he also became a nobody that everyone despised. Qi Baicao (played by Hu Bingqing) is Qu Xiangnan's adopted daughter. When Qu Xiangnan became a "street rat", only Qi Baicao firmly believed in her father's innocence and worked hard to prove his innocence. At the age of sixteen, under the matchmaking of her good friend Fan Xiaoying (played by Tan Songyun), Qi Baicao entered the Songbai Dojo to practice martial arts, and met friends such as Ruobai (played by Yang Yang) and Yu Chuyuan (played by Bai Jingting). In the competition and contest with opponents in the Tongxian Martial Arts Hall, a solid friendship was formed between the few people. In the process of getting along, Qi Baicao and Yu Chuyuan, who was cold outside and hot inside, gradually came together, which made Fang Tingyi (played by Zhao Yuanyuan), who had always been secretly in love with Yu Chuyuan, very annoyed.