The empty SEKAI is just as it seems. An empty, cold wasteland. Six Virtual Singers, or Vocaloids, reside in the Empty SEKAI. KAITO, MEIKO, Rin, Len, Luka and Miku. They seem sadder than usual.. Mafuyu has dark purple hair put up into a ponytail with purple eyes. Kanade has very long white hair with light blue eyes, and she isn't very talkative. Mizuki also has a ponytail, this time it being a light pink. Ena has short, brown hair and brown eyes, and she seems to be very fond of art.