白黒の世界 (Monochrome no Sekai)

Monochrome World is a song sung by Miku Hatsune. Kaito Fuga has his own version of this song as well. Miku's version is a Niconico only song. Kaito's version is the two-hundred-and-fourteenth track in Other Vocaloid Songs 57: Making A Comeback Volume 5.