Kang In-ho is de nieuwe kunstleraar aan de Benevolence Academy, een school voor dove studenten in de fictieve stad Mujin in Noord-Jeolla.
| Writing | Hwang Dong-hyuk | Screenplay |
| Writing | Gong Ji-young | Novel |
| Sound | Mowg | Original Music Composer |
| Directing | Hwang Dong-hyuk | Director |
| Editing | Hahm Sung-won | Editor |
| Camera | Kim Ji-yong | Director of Photography |
| Costume & Make-Up | Rim Seung-hee | Costume Design |
| Lighting | Park Ju-hyun | Lighting Technician |
| Production | Yi Jae-min | Line Producer |
| Art | Chae Kyung-sun | Production Design |
| Camera | Kim Byung-seo | Camera Operator |
| Sound | Han Myung-hwan | Sound Supervisor |
| Sound | Lee Seung-chul | Sound Supervisor |
| Production | Do Young-hoon | Production Supervisor |
| Directing | Park Jung-bae | Assistant Director |
| Sound | Jeong Ji-young | Sound Effects Designer |
| Costume & Make-Up | Kim Do-hee | Makeup & Hair |
| Production | Bae Jeong-min | Producer |
| Sound | Park Hyun-soo | Production Sound Mixer |
| Visual Effects | Jeon Gun-ik | Special Effects Supervisor |
| Art | Hyeon Chang-jo | Props |
| Visual Effects | Park Ui-dong | Visual Effects |
| Editing | Kim Hyung-seok | Digital Colorist |
| Camera | Cho Gi-hun | Key Grip |
| Writing | Lim Sun-ae | Storyboard |
