Ms. Bodyguards: The Secrets of Racecourse.

After completing her training at a martial arts school in the mountains, the orphan Lixia returns to repay her benefactor Yuchi Dong. The equestrian competition organized by her benefactor is manipulated by a gambling group. Yuchi entrusts Xingyu Security Company to protect the riders and arranges for Lixia to join the company for internship.