Overview
While desperately searching for his missing daughter, Hae-kwan comes across an AI satellite robot that remembers sounds from all over the world. Rejuvenated by the robot's abilities, Hae-kwan begins to track down his daughter's voice. As they continue their journey, they form an unforgettable bond.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 47 | 56 | |
 | 21 | 31 | |
 | 32 | 42 | |
 | 21 | 31 | |
 | 36 | 46 | |
 | 46 | 56 | |
 | 29 | 38 | |
 | 63 | 73 | |
 | 29 | 38 | |
 | 39 | 49 |