"Nǚ Biǎo Kǒu Lì Kǒu" is an original song that features a rap battle between the VOCALOID3, Xin Hua, and the UTAU, Xia Yu Yao. Here, they throw insults at each other or brag about their accomplishments while keeping to the beat of the music. At the end, both insulted each other saying that she would never be good because her voice and engine is full of robotic/electronic tone.