The Neptune x Nepgear Sister Duet Album Vol 1. Features the Voice Actresses Rie Tanaka and Yui Horie singing together as Neptune (Purple Heart) and Nepgear. There are are total of 8 tracks.

File:Neptune x Nepgear.png

Tracklist

  1. Smile Spiral - Rie Tanaka (Neptune), Yui Horie (Nepgear)
  2. Lady Cool ~ Purple Heart - Rie Tanaka (Neptune)
  3. M.P.B.L Most Pure Brave Lady - Yui Horie (Nepgear)
  4. Smile Spiral (Off Vocal)
  5. Lady Cool ~ Purple Heart (Off Vocal)
  6. M.P.B.L Most Pure Brave Lady (Off Vocal)
  7. Cast Comment: Rie Tanaka
  8. Cast Comment: Yui Horie