A staircase leading to a schoolgirls' dormitory usually has 28 steps, but sometimes a 29th step appears. Any wish you make while standing on this step comes true, even if it must come true in the most horrific way possible.
- Created by
- Yun Jae-yeon
- Origin
- KR
- TMDB rating
- 6.2 / 10 · 110 votes
