After his first appearance on the competitive world stage, Haruka was overwhelmed by Albert’s swimming and lost his way. “What are you swimming for?” His reason to swim and what the water means to him are called into question. The question has trapped Haruka, and he struggles to find the answer on his own.
| Sound | Yota Tsuruoka | Sound Director |
| Editing | Kengo Shigemura | Editor |
| Sound | Eiko Morikawa | Sound Effects |
| Sound | Satoshi Yano | Sound Recordist |
| Visual Effects | Futoshi Nishiya | Character Designer |
| Production | Shigeru Saito | Producer |
| Sound | Shigeru Saito | Music Producer |
| Production | Yoko Hatta | Executive Producer |
| Writing | Masahiro Yokotani | Co-Writer |
| Sound | Tatsuya Kato | Original Music Composer |
| Visual Effects | Rin Yamamoto | 3D Animator |
| Art | Mutsuo Shinohara | Background Designer |
| Production | Shinichi Nakamura | Producer |
| Art | Ikuko Tamine | Background Designer |
| Visual Effects | Taichi Ishidate | Key Animation |
| Visual Effects | Miku Kadowaki | Animation Director |
| Visual Effects | Miku Kadowaki | Supervising Animation Director |
| Writing | Koji Oji | Original Story |
| Camera | Kazuya Takao | Director of Photography |
| Visual Effects | Joji Unoguchi | 3D Artist |
| Visual Effects | Yuka Yoneda | Color Designer |
| Production | Yuka Sakurai | Executive Producer |
| Production | Masayuki Nishide | Producer |
| Production | Masayuki Nishide | Executive Producer |
| Visual Effects | Nobuaki Maruki | Animation Director |
| Visual Effects | Kayo Hikiyama | Key Animation |
| Visual Effects | Taichi Ogawa | Key Animation |
| Visual Effects | Noriyuki Kitanohara | Key Animation |
| Directing | Takuya Yamamura | Second Unit Director |
| Visual Effects | Kazumi Ikeda | Animation Director |
| Visual Effects | Rie Sezaki | Key Animation |
| Writing | Eisaku Kawanami | Screenplay |
| Directing | Eisaku Kawanami | Director |
| Writing | Eisaku Kawanami | Series Composition |
| Visual Effects | Eisaku Kawanami | Key Animation |
| Art | Eisaku Kawanami | Storyboard Artist |
| Directing | Eisaku Kawanami | Second Unit Director |
| Visual Effects | Yuji Shibata | 3D Director |
| Visual Effects | Norihiro Tomiita | 3D Animator |
| Production | Megumi Suzuki | Producer |
| Art | Kazuki Ikeda | Background Designer |
| Art | Sagako Itakura | Background Designer |
| Visual Effects | Kyohei Ando | Key Animation |
| Art | Naoki Hosokawa | Background Designer |
| Production | Shinichiro Hatta | Producer |
| Visual Effects | Hiroki Ueda | Compositing Artist |
| Visual Effects | Kunihiro Hane | Key Animation |
| Art | Hiroshi Karata | Prop Designer |
| Visual Effects | Hiroshi Karata | Key Animation |
| Visual Effects | Tatsuya Satou | Key Animation |
| Directing | Shinpei Sawa | Second Unit Director |
| Visual Effects | Mariko Takahashi | Animation Director |
| Visual Effects | Taira Yamaguchi | Key Animation |
| Directing | Minoru Ota | Second Unit Director |
| Visual Effects | Kohei Funamoto | Compositing Artist |
| Visual Effects | Kohei Okamura | Animation Director |
| Visual Effects | Kohei Okamura | Character Designer |
| Visual Effects | Kohei Okamura | Supervising Animation Director |
| Visual Effects | Yoshinori Urata | Key Animation |
| Visual Effects | Aoi Matsumoto | Key Animation |
| Visual Effects | Ryo Miyaki | Key Animation |
| Visual Effects | Chika Kamo | Key Animation |
| Visual Effects | Yurika Ono | Key Animation |
| Visual Effects | Seiya Kumano | Key Animation |
| Visual Effects | Tomomi Sato | Key Animation |
| Visual Effects | Momoka Yoshizaki | Key Animation |
| Visual Effects | Yusuke Miyahara | Key Animation |
| Visual Effects | Kakeru Isokawa | Key Animation |
| Visual Effects | Tamami Tokuyama | Key Animation |
| Visual Effects | Aya Hikita | Key Animation |
| Visual Effects | Mei Isai | Key Animation |
| Art | Park Jung-ah | Background Designer |
| Art | Lee Mi-jin | Background Designer |
| Art | Marie Kitai | Background Designer |
| Art | Kim Ji-hee | Background Designer |
| Art | Shuuya Uchiyama | Background Designer |
| Art | Shingo Kasai | Art Direction |
| Art | Tomoki Hiraishi | Background Designer |
| Art | Sayaka Ichiyama | Background Designer |
| Art | Mao Takayama | Background Designer |
| Art | Shiori Yamazaki | Background Designer |
| Art | Harumi Nakamura | Background Designer |
| Art | Nozomi Oishi | Background Designer |
| Art | Shuhei Okude | Background Designer |
| Art | Yukiko Takeuchi | Background Designer |
| Art | Aki Yamatogi | Background Designer |
| Art | Lee Cheon-bok | Background Designer |
| Art | Kouji Maruyama | Background Designer |
| Art | Park Na-eun | Background Designer |
| Visual Effects | Teru Matsumoto | Compositing Artist |
| Visual Effects | Yoshiko Tanaka | Compositing Artist |
| Visual Effects | Tatsunori Kase | 3D Animator |
| Visual Effects | Kazuki Ueno | Compositing Artist |
| Visual Effects | Shouta Eino | Compositing Artist |
| Visual Effects | Keisuke Sudo | Compositing Artist |
| Visual Effects | Mitsuki Takaki | 3D Animator |
| Visual Effects | Kengo Narimatsu | Key Animation |
| Art | Misato Yano | Background Designer |
| Art | Arou Ozaki | Background Designer |
| Crew | Yuki Semori | Special Effects |
| Visual Effects | Nami Kumasaki | Key Animation |
| Art | Lee Choi-ee | Background Designer |
| Art | Aoi Matsushita | Background Designer |
| Editing | Eri Matsuo | Assistant Editor |
| Production | Kazunari Okuma | Executive Producer |
| Visual Effects | Kosuke Wakisaka | 3D Animator |
| Art | Ayaka Okabe | Background Designer |
| Production | Areum Han | Production Manager |
| Art | Kaito Ishigo | Background Designer |
| Visual Effects | Tomonori Yoda | 3D Animator |
| Visual Effects | Sakura Yamazaki | Key Animation |
| Production | Ayano Sato | Publicist |
| Visual Effects | Nozomi Matsuo | Key Animation |
