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.
| Genre | : Animasi, Cerita Fiksi, Petualangan, Drama |
| Sutradara | : 吉浦康裕 |
| Pemeran | : 藤井ゆきよ, 岡本信彦, 土師孝也, 大畑伸太郎, ふくまつ進紗, 加藤将之 |
| Rilis Resmi | : 01 January 2013 |