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 |
| Sound | Masaru Yokoyama | Original Music Composer |
| Directing | Shinobu Yoshioka | Second Unit Director |
| Directing | Hiroyuki Kambe | Second Unit Director |
| Directing | Tomotaka Shibayama | Second Unit Director |
| Visual Effects | Shinobu Yoshioka | Key Animation |
| Directing | Tatsuyuki Nagai | Second Unit Director |
| Directing | Naotaka Hayashi | Second Unit Director |
| Visual Effects | Yutaka Araki | Key Animation |
| Directing | Tatsuyuki Nagai | Director |
| Art | Tatsuyuki Nagai | Storyboard Artist |
| Sound | Jin Aketagawa | Sound Director |
| Production | Shunsuke Saitou | Producer |
| Art | Takashi Nakamura | Art Direction |
| Writing | Mari Okada | Screenplay |
| Sound | Ayumu Anzai | Sound Mixer |
| Visual Effects | Mario Tomeiji | Key Animation |
| Visual Effects | Naohiro Osugi | Key Animation |
| Visual Effects | Kim Bo-man | Key Animation |
| Visual Effects | Shigeki Iwasaki | Key Animation |
| Visual Effects | Koji Odate | Key Animation |
| Visual Effects | Yuichi Fujimaki | Key Animation |
| Visual Effects | Megumi Ueda | Key Animation |
| Art | Tsutomu Ishigaki | Art Direction |
| Art | Jiang Zhenhua | Background Designer |
| Visual Effects | Hiroyuki Moriyama | Compositing Artist |
| Visual Effects | Junpei Takatsu | Compositing Artist |
| Visual Effects | Yoshihiro Sekiya | Compositing Artist |
| Visual Effects | Takeo Ogiwara | Compositing Artist |
| Visual Effects | Kohei Tanada | Compositing Artist |
| Art | Ji Xiangbiao | Background Designer |
| Visual Effects | Shinya Kato | Compositing Artist |
| Visual Effects | Hiroo Yoshioka | Compositing Artist |
| Visual Effects | Hitoshi Tamura | Compositing Artist |
| Visual Effects | Tomoyo Kawaguchi | Compositing Artist |
| Art | Ming Lihong | Background Designer |
| Art | Song Mi-ryeong | Background Designer |
| Visual Effects | Yoshiki Obata | Compositing Artist |
| Visual Effects | Kenji Fujita | Compositing Artist |
| Visual Effects | Ayumi Ushijima | Compositing Artist |
| Editing | Ayaka Minami | Online Editor |
| Visual Effects | Saori Kibe | Compositing Artist |
| Visual Effects | Tomoyoshi Kato | Compositing Artist |
| Visual Effects | Yasuyuki Iwamoto | Compositing Artist |
| Visual Effects | Ryosuke Tsuda | Compositing Artist |
| Visual Effects | Tetsuya Kawata | Compositing Artist |
| Visual Effects | Osamu Motoyama | Compositing Artist |
| Visual Effects | Katsunori Shiradoh | Compositing Artist |
| Visual Effects | Kazuto Izumita | Compositing Artist |
| Visual Effects | Naoki Kitamura | Compositing Artist |
| Visual Effects | Toshihiro Fujita | Compositing Artist |
| Visual Effects | Shinobu Ohata | Compositing Artist |
| Visual Effects | Haruhide Ishiguro | Compositing Artist |
| Visual Effects | Satomi Nishinaga | Compositing Artist |
| Visual Effects | Megumi Himeno | Compositing Artist |
| Visual Effects | Hyun Su-jung | Compositing Artist |
| Visual Effects | Asami Kawai | Compositing Artist |
| Visual Effects | Yurie Yoshioka | Compositing Artist |
| Visual Effects | Hitomi Fukuzawa | Compositing Artist |
| Visual Effects | Yu Long | Compositing Artist |
| Visual Effects | Mayo Suzuki | Compositing Artist |
| Writing | Tatsuyuki Nagai | Original Story |
| Writing | Mari Okada | Original Story |
| Writing | Masayoshi Tanaka | Original Story |
| Production | Atsuhiro Iwakami | Executive Producer |
| Production | Taku Matsuo | Associate Producer |
| Visual Effects | Masayoshi Tanaka | Key Animation |
| Production | Yoko Matsuzaki | Executive Producer |
| Production | Nobumasa Sawabe | Executive Producer |
| Production | Taihei Yamanishi | Executive Producer |
| Production | Tomoyuki Saito | Associate Producer |
| Production | Atsushi Kaneko | Production Assistant |
| Production | Narumi Odagiri | Associate Producer |
| Visual Effects | Masayoshi Tanaka | Supervising Animation Director |
| Production | Junya Okamoto | Associate Producer |
| Sound | Yasumasa Koyama | Sound Effects |
| Visual Effects | Mio Inoguchi | Key Animation |
| Visual Effects | Kazuki Ito | Key Animation |
| Art | Pham Quy | Background Designer |
| Visual Effects | Kanta Suzuki | Key Animation |
| Visual Effects | Iwao Teraoka | Key Animation |
| Visual Effects | Yuko Yamamoto | Key Animation |
| Visual Effects | Yuki Oomori | Key Animation |
| Visual Effects | Yukiko Aikei | Key Animation |
| Visual Effects | Keizou Ichikawa | Key Animation |
| Art | Akemi Ito | Background Designer |
| Art | Akiko Kazato | Background Designer |
| Visual Effects | Yuka Kuroda | Key Animation |
| Visual Effects | Makoto Shimojima | Key Animation |
| Visual Effects | Masaaki Takiyama | Key Animation |
| Art | Dang Phi | Background Designer |
| Visual Effects | Kiminori Itou | Key Animation |
| Visual Effects | Aiko Komamoto | Key Animation |
| Visual Effects | Akira Takata | Animation Director |
| Art | Sumiko Kitazawa | Background Designer |
| Visual Effects | Takeshi Matsuda | Key Animation |
| Visual Effects | Masashi Nomura | Key Animation |
| Sound | Natsumi Okada | Sound Assistant |
| Crew | Masahiro Murakami | Special Effects |
| Visual Effects | Hayato Hashiguchi | Key Animation |
| Visual Effects | Kenji Kodama | Key Animation |
| Art | Mayumi Okabe | Background Designer |
| Visual Effects | Manabu Fukasawa | Key Animation |
| Visual Effects | Natsumi Ishizaki | Key Animation |
| Visual Effects | Tomomi Kawatsuma | Key Animation |
| Visual Effects | Tatsuyuki Maeda | Key Animation |
| Art | Hiroyuki Nemoto | Background Designer |
| Visual Effects | Tomoya Nishiguchi | Key Animation |
| Visual Effects | Masashi Sato | Key Animation |
| Art | Taichi Shishido | Background Designer |
| Art | Osamu Tayama | Background Designer |
| Art | Dao Hung | Background Designer |
| Visual Effects | Hiroshi Kawaguchi | Key Animation |
| Visual Effects | Chizuko Kusakabe | Key Animation |
| Visual Effects | Chiaki Furuzumi | Key Animation |
| Visual Effects | Naoto Nakamura | Key Animation |
| Visual Effects | Terumi Nishii | Key Animation |
| Art | Nguyen Trang | Background Designer |
| Art | Wei Zhang | Background Designer |
| Visual Effects | Koji Odate | Animation Director |
| Production | Hiroyuki Shimizu | Producer |
| Art | Hiroyuki Hasegawa | Background Designer |
| Art | Kimiko Kubo | Background Designer |
| Visual Effects | Miho Daidouji | Key Animation |
| Visual Effects | Hisafumi Nakahara | Key Animation |
| Visual Effects | Hitomi Ochiai | Key Animation |
| Visual Effects | Mariko Oka | Key Animation |
| Visual Effects | Yuu Takahashi | Key Animation |
| Visual Effects | Hisashi Higashijima | Key Animation |
| Art | Mizuka Ueda | Background Designer |
| Visual Effects | Mariko Iguchi | Key Animation |
| Visual Effects | Chie Otsuki | Key Animation |
| Visual Effects | Miwa Oshima | Key Animation |
| Visual Effects | Emiko Shimura | Key Animation |
| Visual Effects | Akira Hamaguchi | Key Animation |
| Visual Effects | Yuka Koshi | Key Animation |
| Production | Mikihiro Iwata | Producer |
| Camera | Hiroyuki Moriyama | Director of Photography |
| Editing | Shigeru Nishiyama | Editor |
| Visual Effects | Aika Kawasaki | Key Animation |
| Editing | Yukino Shimoda | Assistant Editor |
| Visual Effects | Maiko Ochiai | Key Animation |
| Visual Effects | Tatsuaki Okamoto | Key Animation |
| Visual Effects | Atsushi Saito | Key Animation |
| Visual Effects | Kanako Ueda | Key Animation |
| Sound | Ayumi Anzai | Other |
| Visual Effects | You Akatsuki | Key Animation |
| Art | Yusuke Ikeda | Background Designer |
| Art | Kim Mi-gyeong | Background Designer |
| Art | Masaru Sato | Background Designer |
| Visual Effects | Koichiro Ueda | Key Animation |
| Sound | Rie Tanaka | Sound |
| Visual Effects | Naoto Abe | Key Animation |
| Visual Effects | Tetsuro Moronuki | Key Animation |
| Visual Effects | Yasuhiro Okuda | Key Animation |
| Visual Effects | Tadashi Sakazaki | Key Animation |
| Art | Le Mai | Background Designer |
| Art | Toshiyuki Sakae | Background Designer |
| Visual Effects | Hidekazu Yamana | Key Animation |
| Visual Effects | Naohiro Osugi | Animation Director |
| Art | Shogo Sakuma | Background Designer |
| Visual Effects | Mami Yamaguchi | Key Animation |
| Visual Effects | Hironori Tanaka | Key Animation |
| Art | Yuuya Kusumoto | Background Designer |
| Visual Effects | Koji Nobuhara | Key Animation |
| Visual Effects | Takashi Torii | Key Animation |
| Art | Vu Hung | Background Designer |
| Art | Yusuke Watanabe | Background Designer |
| Visual Effects | Yu Yamashita | Animation Director |
| Visual Effects | Tetsuro Nireki | Key Animation |
| Visual Effects | Aiko Sonobe | Key Animation |
| Visual Effects | Yoko Suzuki | Key Animation |
| Visual Effects | Teruaki Tokumaru | Key Animation |
| Visual Effects | Jun Yamazaki | Key Animation |
| Visual Effects | Yuki Sato | Key Animation |
| Visual Effects | Masayoshi Tanaka | Character Designer |
| Art | Junki Taniguchi | Background Designer |
| Visual Effects | Yuichi Yoshida | 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 |
