Official website: https://gkids.com/films/on-gaku-our-sound/
Casts
Shintaro Sakamoto
Kenji (voice)
Ren Komai
Aya (voice)
Tomoya Maeno
Ōta (voice)
Tateto Serizawa
Asakura (voice)
Kami Hiraiwa
Morita (voice)
Naoto Takenaka
Ōba (voice)
Yasuyuki Okamura
Kenji (voice)
