This work is a 12-year story of Mana, a woman who cannot accept the death of her best friend, staring at her as she tries to step forward while having deep sorrow.
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| Visual Effects | Yutaro Kubo | Animation |
| Visual Effects | Satomi Maiya | Animation |
| Sound | Hisaki Kato | Original Music Composer |
| Sound | Akira Kosemura | Original Music Composer |
| Writing | Eiji Umehara | Screenplay |
| Writing | Ryutaro Nakagawa | Screenplay |
| Production | Shinji Ogawa | Producer |
| Production | Hitoshi Ito | Producer |
| Writing | Maru Ayase | Novel |
| Editing | Genta Tamaki | Editor |
| Camera | Tai Ouchi | Director of Photography |
| Directing | Ryutaro Nakagawa | Director |
| Costume & Make-Up | Harumi Arai | Hair Setup |
| Sound | Kyoko Kitahara | Music Producer |
| Art | Tomohiro Iwamoto | Decorator |
| Costume & Make-Up | Nami Shinozuka | Costumer |
| Production | Ryosuke Hounaka | Line Producer |
| Production | Ichiro Goto | Production Manager |
| Production | George Wada | Executive Producer |
| Production | Satoshi Kobayashi | Executive Producer |
| Sound | Masayoshi Nishi | Sound Recordist |
| Art | 松永桂子 | Production Design |
