Among the ruins of the city, there is a game only children can play. It is called “Otokoyo”; a game of hide-and-seek. But whenever children play this game, one by one they would disappear into the blinds of the buildings… The story begins when a boy enters the world of Otokoyo, to find his missing sister.
| Production | Shuhei Morita | Producer |
| Directing | Shuhei Morita | Director |
| Writing | Shiro Kuro | Scenario Writer |
| Sound | Kisuke Koizumi | Sound Director |
| Writing | Shuhei Morita | Scenario Writer |
| Writing | Shiro Kuro | Screenplay |
| Art | Shuhei Morita | Storyboard Artist |
| Sound | Reiji Kitasato | Original Music Composer |