"Fúyóu Yàn Lóng Chuán" is an original Luo Tianyi song and the second song of the GRAVITY Series by Yu Jianliu. The story is the same as 加速坠落 (Jiāsù Zhuìluò), but with different music. It is featured on Yu Jianliu's doujinshi album, Zhòng Lì Huàn Xiǎng Qū. Main article: GRAVITY Series