Kouykuu! Kung Fu Nyan Nyan Monogatari

Drifting onto the shores of the great country of Shin (Zhen) is the female martial artist Gyokuto (Yu Tu), whose skills in martial arts were purchased so as to serve as the body double of the empress while residing in the inner palace. There, she meets a beautiful man by the name of Kangetsu (Han Yue). In truth, he was hired as well to act as the body double of the emperor. While they act the role of a married couple, the fake empress and emperor gradually begin to develop feelings for the other.