In a class room, a girl is sitting on the desk, solving a math quiz. If she cannot solve it in time, a horrible thing is likely to happen.
| Actor | Role |
|---|---|
 Park Sung-wooMan 2 | Man 2 |
| KKim JunhyungGirl | Girl |
| KKim HyosukMasked Man | Masked Man |
| LLee YoungjunHeadless Boy | Headless Boy |