Yuyoung lee

Appearing in s1, ep.23. A PE teacher at Chukmyeong High. Has wife and children.

He is first seen sexually harasses a female student because she has long hair in a school despite there is no regulation. She pokes her breast with his stick but has no fear as it was a "mistake" on his end. Due to this, he was targeted by Hwajin for flawed teaching and is forced to be a temporarily student as punishment. Then afterwards, he was given a "mid term exam" where the most points is to ask forgiveness to the students they harrassed.

He does this but the girls he harrassed are instead giving him the same treatment. but is caught and stabbed in the chest by the police. Near the end, he and Sangyeol has not yet passed their exam. and in the end, it seems he had failed. Due to this, he was most likely fired.