Overview
Troublemakers Mok-won, Ryu and Hak-moon are far from passing the state examinations. Three female students enter the school during a new spring term and the atmosphere changes. Then one day, Mok-won and Ryu are taken to around the back of the school and molested by an unknown woman. The three of them start an investigation.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 20 | 32 | |
 | 27 | 38 | |
 | 26 | 37 | |
 | 33 | 44 | |
 | 32 | 44 | |
 | 34 | 46 | |
 | 33 | 45 | |
 | 26 | 38 | |
 | - | - |