Overview
Yong-soon is an 18-year-old high school student. She falls in love with her gym teacher, but she thinks her teacher might have a girlfriend. Yong-Soon and her friends try to find out whether he does have a girlfriend, but they can't find any clues. Making things worse, her father brings a new stepmother from Mongolia.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 20 | 28 | |
 | 47 | 55 | |
 | 33 | 41 | |
 | 29 | 37 | |
 | - | - | |
 | 69 | 77 | |
 | 56 | 64 | |
 | 71 | 79 | |
 | 38 | 46 | |
 | 33 | 42 |