それが永遠ではないのなら (Sore ga Eiende wa Nai Nonara)

Sore Ga Eiende Wa Nai Nonara is a song sung by Miku Hatsune. Matsudappoine Matsuda has her own version of this song as well. It is the two-hundred-and-seventh track in Other Vocaloid Songs 122 and a Niconico only song.