Numbers stations were prominently used during the Cold War. A boy was tuning the radio in the snow mountain and happened to tune the shortwave of codes.
| Directing | Ryotaro Miyajima | Director |
| Visual Effects | Ryotaro Miyajima | Animation |
| Sound | Yoshiki Masuda | Music |
| Sound | Mayu Kasahara | Sound Designer |
| Production | Koji Yamamura | Producer |
| Crew | Shion Tanaka | Sound Design Assistant |
| Editing | Akiko Yamane | Colorist |