Overview
An Ran, a music teacher, and Song En, a boxer, both teach at the same remote water school at different times. Through a magical diary, they begin an unexpected connection, leading to a blossoming romance.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 34 | 35 | |
 | 27 | 27 | |
 | 32 | 32 | |
 | - | - | |
 | 44 | 45 | |
 | 44 | 45 | |
 | 43 | 44 |