Ensemble Stars! ED Collection Vol.6

'Ensemble Stars! ED Collection Vol.6' is a single featuring the eleventh and twelfth ED songs of the anime, sung by Knights and Eden. It also comes with a karaoke version for each song.

Track Listing
- Lyrics: Saori Codama - Composition: Satoru Kuwabara (Arte Refact) - Arrangement: Takuya Sakai (Arte Refact) - Lyrics: Yohei Matsui (松井洋平) - Composition: TAKAROT, Funk Uchino - Arrangement: TAKAROT
 * 1) Promise Swords (Knights) [[File:Promise Swords Sample.ogg]]
 * 1) Awakening Myth (Eden) [[File:Awakening Myth Sample.ogg]]
 * 1) Promise Swords (Karaoke ver.)
 * 2) Awakening Myth (Karaoke ver.)