In the era when steam machinery and traditional equestrianism blended together during the Jin Dynasty, Su Zhao, the adopted daughter of the former royal horse supervisor, relied on her ultimate insight into the nature of horses and her talent in modifying steam machinery to counterattack from a market horse trainer to become the first female equestrian in the dynasty. She broke the century-old rule of "women not participating in the competition" with innovative competition systems such as "bareback racing" and "mechanical shoeing". She defeated noble jockeys in top events such as the "Golden Saddle Cup" and "Yunzhou Horse King's Battle", and even exposed the "horse plague conspiracy" During the "match ticket gambling game" and other shady events, he was accidentally involved in the old case of his adoptive father's injustice. In the end, he changed the ancestral system of women not being able to participate in the "Tiancai Grand Parade" as "the best rider in the world" and became an indelible legend in the history of steam dynasty sports. The cool points focus on the three core points of "defeating the strong with the weak", "outwit the conspiracy" and "confronting the powerful".