Chubby high school student and Madonna-devotee Oh Dong-ku is a trans woman living with her abusive, alcoholic father. Dong-ku works part-time to save money for the sex reassignment surgery she craves. Despite being told that she has the perfect physique for Korean wrestling, Dong-ku has no interest in taking up sports — but when she finds out about an upcoming tournament with a large cash prize going to the winner, she changes her mind and signs up for the team.
13 years after the King Injo Revolt, the Chosun Dynasty is attacked by the Chung Dynasty of China. A young man named Na-mi leaves his demolished village to find his young sister, Ja-in, and her finance Su-koon, who were to wed on the very day of the attack. While on his mission to rescue her, he is being traced by Jushinta, a fierce Chung Warrior, and his band of malicious men who are out to stop him. Na-mi has but a day to rescue his sister before she is taken away to be a slave. When Na-mi finally finds his sister, Jushinta comes between them and a fierce battle between two of the finest warriors unfolds.