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.

Network

• NAVER TV

Seasons & Episodes

Cast

• 

  Uhm Ki-joon

  Han Bong-goo

  12 eps

• 

  Kim So-hyun

  Kang Ye-rim

  12 eps

• 

  Lee Min-hyuk

  Seo Sang-woo

  12 eps

• 

  Seo Shin-ae

  Kim Seul-gi

  12 eps

Themes

• time travel
• investigation
• supernatural
• high school
• teacher
• school
• spirit
• mysterious
• school bullying

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