A special sequel anime for Free! to screen in Fall 2017.
| Directing | Eisaku Kawanami | Director |
| Writing | Masahiro Yokotani | Screenplay |
| Sound | Nobunaga Shimazaki | Theme Song Performance |
| Production | Gen Fukunaga | Executive Producer |
| Sound | Daisuke Hirakawa | Theme Song Performance |
| Sound | Tsubasa Yonaga | Theme Song Performance |
| Sound | Mamoru Miyano | Theme Song Performance |
| Sound | Tatsuhisa Suzuki | Theme Song Performance |
| Crew | Sachie Tsuda | Special Effects |
| Art | Takuya Yamamura | Storyboard Artist |
| Art | Eisaku Kawanami | Storyboard Artist |
| Visual Effects | Futoshi Nishiya | Character Designer |
| Writing | Koji Oji | Original Concept |
| Art | Joji Unoguchi | Art Direction |
| Visual Effects | Futoshi Nishiya | Supervising Animation Director |
| Visual Effects | Futoshi Nishiya | Animation Director |
| Visual Effects | Miku Kadowaki | Animation Director |
| Visual Effects | Nobuaki Maruki | Animation Director |
| Visual Effects | Tatsunari Maruko | Animation Director |
| Visual Effects | Yurika Ono | Key Animation |
| Visual Effects | Yuki Yokoyama | Key Animation |
| Visual Effects | Tomomi Sato | Key Animation |
| Visual Effects | Tatsuya Satou | Key Animation |
| Visual Effects | Takuya Yamamura | Key Animation |
| Visual Effects | Sumire Kusano | Key Animation |
| Visual Effects | Shiho Morisaki | Key Animation |
| Visual Effects | Seiya Kumano | Key Animation |
| Visual Effects | Sayaka Watanabe | Key Animation |
| Visual Effects | Saeko Fujita | Key Animation |
| Visual Effects | Sae Sawada | Key Animation |
| Visual Effects | Ryouhei Muta | Key Animation |
| Visual Effects | Momoka Yoshizaki | Key Animation |
| Visual Effects | Minoru Ota | Key Animation |
| Visual Effects | Miku Kadowaki | Key Animation |
| Visual Effects | Maiko Hado | Key Animation |
| Visual Effects | Kunihiro Hane | Key Animation |
| Visual Effects | Kota Sato | Key Animation |
| Visual Effects | Kayo Hikiyama | Key Animation |
| Visual Effects | Eisaku Kawanami | Key Animation |
| Visual Effects | Chinatsu Morimoto | Key Animation |
| Visual Effects | Chiharu Kuroda | Key Animation |
| Visual Effects | Ami Kuriki | Key Animation |
