First compilation movie of the TV series which covers episodes 1-8 with new scenes added for the introduction. It covers the period from when Riko descends into the Abyss with her robot companion Reg, reaching the second layer where they meet the White Whistle Ozen who reveals information about Riko's mother.
| Actor | Role |
|---|---|
 Miyu TomitaRiko (voice) | Riko (voice) |
 Mariya IseReg (voice) | Reg (voice) |
 Taishi MurataJiruo (voice) | Jiruo (voice) |
 Mutsumi TamuraNat (voice) | Nat (voice) |
 Manami NumakuraShiggy (voice) | Shiggy (voice) |
 Maaya SakamotoLyza (voice) | Lyza (voice) |
 Shiori IzawaNanachi (voice) | Nanachi (voice) |
 Manami HanawaKiyui (voice) | Kiyui (voice) |
 Tetsu InadaHablog (voice) | Hablog (voice) |
 Yoko SoumiBelchero (voice) | Belchero (voice) |