

Overview
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.
Hong Ji-hye
Ji-hye

Moon Jeong-hee
Dance Teacher

Kwak Ji-min
Dance Class Junior

Hong Soo-ah
Sculpture Club Member

Lee Min-jung
Jin-sung's Ballet Dance Double
Joo Eun
Younger Dance Group Member
Lee Ji-yeon
Radio DJ
Jang Woo-jin
Gym Teacher