In the previous story, Yoji and Kei rescued Anna, their adoptive mother. Now, they are once again using the Fastening Machine with Oscar, the bear robot, to solve any problems the town is facing. One day, however, a mysterious hero makes her appearance. And she happens to have the same Fastening Machine as Yoji and Kei. Who is this she? Why did she appear? Just then, a big problem hits this peaceful town! Will these small heroes be able to save the town from a crisis? This is a near-futuristic action anime taken to the next level! Don't miss it!
Unfortunately the movie Fastening Days 2 is not yet available on Disney Plus.
| Sound | Yoshinori Sunahara | Original Music Composer |
| Visual Effects | Namiko Ishidate | Animation |
| Editing | Hiroshi Kamebuchi | Editor |
| Visual Effects | Itsumo Togashi | Animation |
| Visual Effects | Kei Masaki | Animation |
| Visual Effects | Masanao Murayama | Animation |
| Art | Kentaro Kawajiri | Art Designer |
| Visual Effects | Maiko Ochiai | Animation |
| Visual Effects | Hideaki Abe | Animation |
| Visual Effects | Yosuke Jinbo | Animation |
| Visual Effects | Izumi Hirose | Color Designer |
| Visual Effects | Yojiro Arai | Animation |
| Visual Effects | Kentaro Kurisaki | Animation |
| Sound | Toshiya Wada | Sound Effects |
| Directing | Kei Masaki | Second Unit Director |
| Visual Effects | Yuki Sato | Animation |
| Visual Effects | Masayo Tamaki | Animation |
| Visual Effects | Kentaro Kawajiri | Animation |
| Art | Kei Masaki | Art Designer |
| Writing | Junichi Tanaka | Screenplay |
| Art | Kei Masaki | Storyboard Artist |
| Visual Effects | Akihiro Nagae | Animation Director |
| Visual Effects | Akihiro Nagae | Animation |
| Directing | Hiroyasu Ishida | Director |
| Camera | Norihito Ishii | Director of Photography |
| Art | Yusuke Takeda | Art Direction |
| Visual Effects | Akihiro Nagae | Character Designer |
| Sound | Satoshi Motoyama | Sound Director |
| Visual Effects | Jeong In-seon | Animation |
