Overview
tells the story of Jung-hoon, an honor student who is involved in a murder case at his school. After finding his friend, Tae-gyu, murdered, Jung-hoon becomes the prime suspect. Da-jung, a student who believes in his innocence, helps him uncover the mystery and find the real killer before class resumes and the body is discovered.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 15 | 32 | |
 | 19 | 35 | |
 | 42 | 58 | |
 | 38 | 54 | |
 | 28 | 44 | |
 | 26 | 42 | |
 | 54 | 70 | |
 | 19 | 35 | |
 | 20 | 36 | |
 | 27 | 43 |