A young girl had her voice magically taken away so that she would never hurt people with it, but her outlook changes when she encounters music and friendship. Will Naruse be able to convey the anthem of her heart?
Unfortunately the movie The Anthem of the Heart is not yet available on HBO Max.
| Sound | mito | Original Music Composer |
| Visual Effects | Tatsuyuki Nagai | Key Animation |
| Visual Effects | Hiroyuki Kambe | Key Animation |
| Editing | Yuji Kondo | Assistant Editor |
| Directing | Shinobu Yoshioka | Second Unit Director |
| Visual Effects | Shinobu Yoshioka | Key Animation |
| Directing | Hiroyuki Kambe | Second Unit Director |
| Directing | Naotaka Hayashi | Second Unit Director |
| Directing | Tatsuyuki Nagai | Second Unit Director |
| Directing | Tomotaka Shibayama | Second Unit Director |
| Sound | Masaru Yokoyama | Original Music Composer |
| Visual Effects | Yutaka Araki | Key Animation |
| Directing | Tatsuyuki Nagai | Director |
| Art | Tatsuyuki Nagai | Storyboard Artist |
| Production | Shunsuke Saitou | Producer |
| Writing | Mari Okada | Screenplay |
| Art | Takashi Nakamura | Art Direction |
| Sound | Jin Aketagawa | Sound Director |
| Sound | Ayumu Anzai | Sound Mixer |
| Visual Effects | Mario Tomeiji | Key Animation |
| Visual Effects | Yuichi Fujimaki | Key Animation |
| Visual Effects | Megumi Ueda | Key Animation |
| Visual Effects | Shigeki Iwasaki | Key Animation |
| Visual Effects | Kim Bo-man | Key Animation |
| Visual Effects | Koji Odate | Key Animation |
| Visual Effects | Naohiro Osugi | Key Animation |
| Art | Tsutomu Ishigaki | Art Direction |
| Art | Song Mi-ryeong | Background Designer |
| Art | Jiang Zhenhua | Background Designer |
| Art | Ming Lihong | Background Designer |
| Art | Ji Xiangbiao | Background Designer |
| Visual Effects | Hiroyuki Moriyama | Compositing Artist |
| Visual Effects | Kenji Fujita | Compositing Artist |
| Visual Effects | Junpei Takatsu | Compositing Artist |
| Editing | Ayaka Minami | Online Editor |
| Visual Effects | Yoshihiro Sekiya | Compositing Artist |
| Visual Effects | Kohei Tanada | Compositing Artist |
| Visual Effects | Ayumi Ushijima | Compositing Artist |
| Visual Effects | Saori Kibe | Compositing Artist |
| Visual Effects | Haruhide Ishiguro | Compositing Artist |
| Visual Effects | Shinya Kato | Compositing Artist |
| Visual Effects | Takeo Ogiwara | Compositing Artist |
| Visual Effects | Osamu Motoyama | Compositing Artist |
| Visual Effects | Satomi Nishinaga | Compositing Artist |
| Visual Effects | Naoki Kitamura | Compositing Artist |
| Visual Effects | Toshihiro Fujita | Compositing Artist |
| Visual Effects | Hiroo Yoshioka | Compositing Artist |
| Visual Effects | Hitoshi Tamura | Compositing Artist |
| Visual Effects | Tetsuya Kawata | Compositing Artist |
| Visual Effects | Katsunori Shiradoh | Compositing Artist |
| Visual Effects | Yoshiki Obata | Compositing Artist |
| Visual Effects | Megumi Himeno | Compositing Artist |
| Visual Effects | Hyun Su-jung | Compositing Artist |
| Visual Effects | Asami Kawai | Compositing Artist |
| Visual Effects | Ryosuke Tsuda | Compositing Artist |
| Visual Effects | Tomoyoshi Kato | Compositing Artist |
| Visual Effects | Hitomi Fukuzawa | Compositing Artist |
| Visual Effects | Yu Long | Compositing Artist |
| Visual Effects | Shinobu Ohata | Compositing Artist |
| Visual Effects | Mayo Suzuki | Compositing Artist |
| Visual Effects | Kazuto Izumita | Compositing Artist |
| Visual Effects | Yurie Yoshioka | Compositing Artist |
| Visual Effects | Tomoyo Kawaguchi | Compositing Artist |
| Visual Effects | Yasuyuki Iwamoto | Compositing Artist |
| Writing | Tatsuyuki Nagai | Original Story |
| Writing | Mari Okada | Original Story |
| Writing | Masayoshi Tanaka | Original Story |
| Production | Atsuhiro Iwakami | Executive Producer |
| Production | Yoko Matsuzaki | Executive Producer |
| Production | Taihei Yamanishi | Executive Producer |
| Production | Nobumasa Sawabe | Executive Producer |
| Production | Narumi Odagiri | Associate Producer |
| Production | Taku Matsuo | Associate Producer |
| Production | Tomoyuki Saito | Associate Producer |
| Production | Junya Okamoto | Associate Producer |
| Production | Atsushi Kaneko | Production Assistant |
| Visual Effects | Masayoshi Tanaka | Supervising Animation Director |
| Visual Effects | Masayoshi Tanaka | Key Animation |
| Production | Mikihiro Iwata | Producer |
| Production | Hiroyuki Shimizu | Producer |
| Camera | Hiroyuki Moriyama | Director of Photography |
| Editing | Shigeru Nishiyama | Editor |
| Sound | Ayumi Anzai | Other |
| Sound | Yasumasa Koyama | Sound Effects |
| Sound | Natsumi Okada | Sound Assistant |
| Sound | Rie Tanaka | Sound |
| Crew | Masahiro Murakami | Special Effects |
| Editing | Yukino Shimoda | Assistant Editor |
| Visual Effects | Naoto Abe | Key Animation |
| Visual Effects | Yukiko Aikei | Key Animation |
| Visual Effects | Miho Daidouji | Key Animation |
| Art | Dang Phi | Background Designer |
| Art | Dao Hung | Background Designer |
| Visual Effects | Manabu Fukasawa | Key Animation |
| Visual Effects | Chiaki Furuzumi | Key Animation |
| Visual Effects | Akira Hamaguchi | Key Animation |
| Visual Effects | You Akatsuki | Key Animation |
| Art | Hiroyuki Hasegawa | Background Designer |
| Visual Effects | Hayato Hashiguchi | Key Animation |
| Visual Effects | Keizou Ichikawa | Key Animation |
| Visual Effects | Mariko Iguchi | Key Animation |
| Art | Yusuke Ikeda | Background Designer |
| Visual Effects | Mio Inoguchi | Key Animation |
| Visual Effects | Natsumi Ishizaki | Key Animation |
| Art | Akemi Ito | Background Designer |
| Visual Effects | Kazuki Ito | Key Animation |
| Visual Effects | Kiminori Itou | Key Animation |
| Visual Effects | Hiroshi Kawaguchi | Key Animation |
| Visual Effects | Aika Kawasaki | Key Animation |
| Visual Effects | Tomomi Kawatsuma | Key Animation |
| Art | Akiko Kazato | Background Designer |
| Art | Kim Mi-gyeong | Background Designer |
| Art | Sumiko Kitazawa | Background Designer |
| Visual Effects | Kenji Kodama | Key Animation |
| Visual Effects | Aiko Komamoto | Key Animation |
| Visual Effects | Yuka Koshi | Key Animation |
| Art | Kimiko Kubo | Background Designer |
| Visual Effects | Yuka Kuroda | Key Animation |
| Visual Effects | Chizuko Kusakabe | Key Animation |
| Art | Yuuya Kusumoto | Background Designer |
| Art | Le Mai | Background Designer |
| Visual Effects | Tatsuyuki Maeda | Key Animation |
| Visual Effects | Takeshi Matsuda | Key Animation |
| Visual Effects | Tetsuro Moronuki | Key Animation |
| Visual Effects | Hisafumi Nakahara | Key Animation |
| Visual Effects | Naoto Nakamura | Key Animation |
| Art | Hiroyuki Nemoto | Background Designer |
| Visual Effects | Tetsuro Nireki | Key Animation |
| Visual Effects | Tomoya Nishiguchi | Key Animation |
| Visual Effects | Terumi Nishii | Key Animation |
| Visual Effects | Koji Nobuhara | Key Animation |
| Visual Effects | Masashi Nomura | Key Animation |
| Visual Effects | Hitomi Ochiai | Key Animation |
| Visual Effects | Maiko Ochiai | Key Animation |
| Visual Effects | Chie Otsuki | Key Animation |
| Visual Effects | Mariko Oka | Key Animation |
| Art | Mayumi Okabe | Background Designer |
| Visual Effects | Tatsuaki Okamoto | Key Animation |
| Visual Effects | Yasuhiro Okuda | Key Animation |
| Visual Effects | Miwa Oshima | Key Animation |
| Visual Effects | Naohiro Osugi | Animation Director |
| Art | Pham Quy | Background Designer |
| Visual Effects | Atsushi Saito | Key Animation |
| Art | Toshiyuki Sakae | Background Designer |
| Visual Effects | Tadashi Sakazaki | Key Animation |
| Art | Shogo Sakuma | Background Designer |
| Visual Effects | Yuki Sato | Key Animation |
| Art | Masaru Sato | Background Designer |
| Visual Effects | Masashi Sato | Key Animation |
| Visual Effects | Makoto Shimojima | Key Animation |
| Visual Effects | Emiko Shimura | Key Animation |
| Art | Taichi Shishido | Background Designer |
| Visual Effects | Aiko Sonobe | Key Animation |
| Visual Effects | Kanta Suzuki | Key Animation |
| Visual Effects | Yoko Suzuki | Key Animation |
| Visual Effects | Akira Takata | Animation Director |
| Visual Effects | Yuu Takahashi | Key Animation |
| Visual Effects | Masaaki Takiyama | Key Animation |
| Visual Effects | Hironori Tanaka | Key Animation |
| Visual Effects | Masayoshi Tanaka | Character Designer |
| Art | Junki Taniguchi | Background Designer |
| Art | Osamu Tayama | Background Designer |
| Visual Effects | Iwao Teraoka | Key Animation |
| Visual Effects | Teruaki Tokumaru | Key Animation |
| Visual Effects | Takashi Torii | Key Animation |
| Art | Nguyen Trang | Background Designer |
| Visual Effects | Hisashi Higashijima | Key Animation |
| Visual Effects | Kanako Ueda | Key Animation |
| Visual Effects | Koichiro Ueda | Key Animation |
| Art | Mizuka Ueda | Background Designer |
| Art | Vu Hung | Background Designer |
| Art | Yusuke Watanabe | Background Designer |
| Visual Effects | Mami Yamaguchi | Key Animation |
| Visual Effects | Yuko Yamamoto | Key Animation |
| Visual Effects | Hidekazu Yamana | Key Animation |
| Visual Effects | Yu Yamashita | Animation Director |
| Visual Effects | Jun Yamazaki | Key Animation |
| Visual Effects | Yuichi Yoshida | Key Animation |
| Art | Wei Zhang | Background Designer |
| Visual Effects | Koji Odate | Animation Director |
| Visual Effects | Yuki Oomori | Key Animation |
| Visual Effects | Reina Kawasaki | Key Animation |
| Visual Effects | Nobuyoshi Souzaki | Key Animation |
| Visual Effects | Kazuko Nakashima | Color Designer |
| Art | Mariko Oka | Prop Designer |
