Hyo-joo, a temporary teacher at a boys' high school, witnesses Hae-yeong's passionate embrace with a boy, causing her immense humiliation towards her.
Park Hyo-joo
Hae-young
Jae-ha
Pyo Sang-woo
Jae-ha's father
Lee Jong-chan
vice-principal
head teacher
Lesson teacher
Chairman
Yoo Jong-Ki
Lee Yoon-mi
Teacher
Teacher
Kim Na-yeon
