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.
1978
2005
1991
1966
2015
2025
2018
2010
1996
1997
2004
2023
1999
1998
2006
2001
