Karina, an English teacher at Hanlim Multi Arts High School, finds herself increasingly drawn to her student, the class representative. One day, she discovers him kissing his girlfriend in an empty classroom, fueling her own unfulfilled desires. Later, she lures him to the teacher's room, where she confesses her attraction and makes a bold advance, asking for the same intimacy she witnessed. The encounter leaves both of them in a charged and uncertain situation, blurring the lines between teacher and student.