Included in a promotional set sold at Comiket 76, along with a Cotton 100% artbook, a box of Cotton 120% Tissues, and a postcard.

Nagisano: Disc 1
Amber Quartz: Disc 2

1.01 Nagisano
  composed & arranged by Hitoshi Fujima (Elements Garden)
  performed by NANA
  written by Cotton Soft

1.24 Summer Star
  composed & arranged by MANYO (Little Wing)
  performed by KAKO
  written by Hajime Unatomi

2.01 Amber World
   composed & arranged by Hitoshi Fujima (Elements Garden)
   written & performed by Hiromi Sato

2.11/2.23 Innocent Quartz
   composed & arranged by Hitoshi Fujima (Elements Garden)
   performed by μ
   written by Hajime Unatomi

2.20 Amber Prayer
   composed & arranged by Toshimichi Isoe (ZIZZ STUDIO)
   performed by Kanako Ito
   written by Ikuko Ebata (ZIZZ STUDIO)

BGM Composition/Arrangement:
   Ebi (SoundUnion): 1.02, 1.08
   Elements Garden: 1.03, 1.11, 1.13, 2.10
   SENTIVE: 1.04, 1.20, 2.05, 2.19, 2.22
   Narucho: 1.05, 1.10
   Akira Tateuchi (TGZ SOUNDs): 1.06, 1.09, 1.15, 1.17
   MANYO (Little Wing): 1.07, 1.18
   Kyoko Ide: 1.12, 1.14, 1.21, 1.23
   sin (Birth Entertainment): 1.16, 1.22
   souten: 1.19
   443: 2.02, 2.06, 2.12
   Barbarian on the Groove: 2.03, 2.09, 2.13, 2.16, 2.21
   Scuderia M (Peak A Soul+): 2.04, 2.07, 2.15, 2.17, 2.18
   SHIM (TGZ SOUNDs): 2.08, 2.14

Track 1.25 composed by MANYO (Little Wing), arranged by Akira Tateuchi (TGZ).
Track 2.24 composed by Hitoshi Fujima (Elements Garden) and arranged by TGZ SOUNDs.