So-Ah works as a teacher at a local school. She was curious about Boo Young-Suk, a student with a sinister aura who is always present on the attendance list but no one calls him by name. The more she tries to get Boo Young-Suk back to school, strange things begin to happen at school.
Kim So-hye
Jung Yoon-suk
Lee Gyu-hyeon
Yoo Na-gyeol
Karin
Score: 7.4
Score: 5.8
Score: 5.8
Score: 7.3
Score: 5.6
Score: 6.1
Score: 5.6
Score: 5.2
