A young man discovers a tiny hole in a wall of his new room, and looks through it to see a girl on the other side.
| Production | Ryo Oyama | Producer |
| Visual Effects | Hiromitsu Hagiwara | Character Designer |
| Editing | Kentaro Tsubone | Editor |
| Visual Effects | Yukiko Tadano | Color Designer |
| Camera | Takashi Yanagida | Director of Photography |
| Art | Masaru Amamizu | Art Direction |
| Visual Effects | Hiromitsu Hagiwara | Supervising Animation Director |
| Sound | Jin Aketagawa | Sound Director |
| Sound | Tai Motoyoshi | Music Producer |
| Visual Effects | Toshirou Hamamura | CGI Director |
| Production | Tomokazu Iizumi | Producer |
| Production | Hiro Torimitsu | Producer |
| Writing | Hideki Shirane | Series Composition |
| Sound | Kano Kawashima | Original Music Composer |
| Directing | Masato Jimbo | Series Director |
