Minato studies piano at a music academy. One day, he falls head over heels in love with fellow student Yukino, who harbors a tragic secret that will put their romance to the test.
Unfortunately the movie Secret: A Hidden Score is not yet available on HBO Max.
| Writing | Saya Matsuda | Screenplay |
| Writing | Jay Chou | Original Film Writer |
| Directing | Hayato Kawai | Director |
| Writing | Christine To Chi-Long | Original Film Writer |
| Sound | Harumi Fuuki | Music |
| Sound | Kenichi Fujimoto | Sound Recordist |
| Visual Effects | Kôsuke Kamata | VFX Supervisor |
| Lighting | Tokujû Ichikawa | Gaffer |
