A comedy about a woman who tries to overcome tone-deafness and a man who tries to help her but joins the romance.
| Actor | Role |
|---|---|
 Park Ha-seonDong-joo | Dong-joo |
 Yoon Sang-hyunShin-heung | Shin-heung |
 Im Jung-eunBo-ra | Bo-ra |
 Choi Jin-hyukMin-soo | Min-soo |
 Park Cheol-minDr. Mok | Dr. Mok |
 Jang KwangCEO Gong | CEO Gong |
 Kim Sun-youngLee Hyung-ja | Lee Hyung-ja |
 Kim Hae-sookDong-joo's mother | Dong-joo's mother |
 Song Sae-byukHyung-ja's husband | Hyung-ja's husband |
 Ahn Nae-sangstreet stall customer | street stall customer |
| JJo Byung-Gihigh school teacher | high school teacher |
 Lee Si-hoonNot listed | Not listed |
 Kim Byeong-okNot listed | Not listed |
 Lee Seung-hunNot listed | Not listed |
 Han Yeo-woolBride | Bride |