In need of a cellphone, two students take a risky journey to the teachers' office. Byeong-chan passes on critical information to Detective Song Jae-ik.
| Title | Episode 4 |
|---|---|
| Genres | Action & Adventure Drama Sci-Fi & Fantasy |
| Release Date | 2022-01-28 |
| Episode Runtime | 01 Hours 05 Minutes |
| Season Number | 1 |
| Episode Number | 4 |
| Production Companies | Film Monster, KIMJONGHAK PRODUCTION, npio Entertainment, JTBC Studios, SLL |
