Gwak Chang-hyeok is a head teacher with a terrible reputation among the students. Je Il-ro, who has a fetish for "nasty personalities and glasses," finds himself strangely fascinated by him. Then one day, he witnesses Gwak Chang-hyeok talking to his girlfriend on the phone, wearing an uncharacteristically gentle expression. That moment ignites Je Il-ro's twisted desires.
Driven half by curiosity and half for his own amusement, he begins to plot his approach toward Gwak Chang-hyeok...
