Released:

Overview:
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.

Director:
Hyun Moon-seop

Runtime:
NaNh NaNmin

Genre:
Mystery, Drama

• Cast:
• 
  Uhm Ki-joon
  as
  Han Bong-goo
• 
  Kim So-hyun
  as
  Kang Ye-rim
• 
  Lee Min-hyuk
  as
  Seo Sang-woo
• 
  Seo Shin-ae
  as
  Kim Seul-gi
• 
  Baek Seung-do
  as
  Oh Ki-chul