Ji-soo is unsuccessful in fulfilling her dream of becoming a famous pianist. However, when she comes across a child with great potential, she decides to fulfil her dream through him.
| Actor | Role |
|---|---|
 Uhm Jung-hwaKim Ji-soo | Kim Ji-soo |
| SSin Ee-jaeYoon Gyung-min | Yoon Gyung-min |
 Park Yong-wooShim Kwang-ho | Shim Kwang-ho |
 Choi Sun-jaGyung-min's Grandmother | Gyung-min's Grandmother |
 Jung In-giJi-soo's Older Brother | Ji-soo's Older Brother |
 Kim Bo-raMin-hee | Min-hee |
 Kim Hee-jungJeon Kong-ja's Mother | Jeon Kong-ja's Mother |
 Yoo Ji-yeon5th Performer | 5th Performer |
 Woo Jung-kookFurniture Mover | Furniture Mover |
| YYun Ye-riJung-eun | Jung-eun |
| YYang Kkot-nimJi-soo's Sister-in-law | Ji-soo's Sister-in-law |
 Park Young-seoPizza | Pizza |
| KKim Jong-minTaekwondo | Taekwondo |
 Cho Hyen-wooVideo | Video |
 Lee Young-heeJi-soo's Mother | Ji-soo's Mother |
| LLee Myeong-sukHouseowner | Houseowner |
| KKim Ho-yeonBo-ram's Mother | Bo-ram's Mother |