"Mine" is an original electro song produced by PuFFcorn. In February 2015, PuFFcorn created a self cover using Xin Hua's vocals and uploaded it to SoundCloud. The original version was sung by Luo Tianyi and was featured in the album YI x DM.
In this song, Xin Hua (preceding version: Tianyi) sings about her desire to have music and whether that it's good or bad for her is irrelevant. She just wants her music and to go crazy. In the second verse, she sings that she will never let her songs drop key and that her music only represents arrogant pride. She also mentions that her music is "hers and hers alone"