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.
| Actor | Role |
|---|---|
 Kim Ha-neulPark Hyo-joo | Park Hyo-joo |
 Yoo In-youngHae-young | Hae-young |
 Lee Won-keunJae-ha | Jae-ha |
 Lee Hee-junPyo Sang-woo | Pyo Sang-woo |
 Ki Joo-bongJae-ha's father | Jae-ha's father |
 Lee Ki-wooLee Jong-chan | Lee Jong-chan |
 Jeong Seok-yongvice-principal | vice-principal |
 Hong Wan-pyohead teacher | head teacher |
 Oh Na-raLesson teacher | Lesson teacher |
 Lee Kyung-youngChairman | Chairman |
 Kwak Dong-yeonYoo Jong-Ki | Yoo Jong-Ki |
 Im Hwa-youngLee Yoon-mi | Lee Yoon-mi |
 Kim Soo-jinTeacher | Teacher |
 Lee Chung-heeTeacher | Teacher |
 Ok Ji-youngKim Na-yeon | Kim Na-yeon |