A young girl, from a civilization that resides in deep underground tunnels, finds herself trapped in an inverted world and teams up with a resident to escape and return home.
Starring Yukiyo Fujii, Nobuhiko Okamoto, Takaya Hashi, Shintarou Oohata, Shinya Fukumatsu, Masayuki Katou, Hiroki Yasumoto, Maaya Uchida, Hideyuki Umezu, Go Shinomiya