A homeroom teacher of Yosan Private High School has an accident, and thus a substitute comes to fill in. Han Bong-Gu is a mysterious man, and after strange occurrences the class president Ye-Rim tries to get to the bottom of this mystery.
2021
2001
2005
1998
2022
2023
2008
2020
2019
2011
2014
2015
2013
