Doyeong, a student who is retaking the college entrance exam, is searching for a tutor to assist him in gaining admission to Korea University. Through the introduction of a high school friend, Doyeong sets up tutoring sessions with his former class president. However, his tutor turns out to be Hajin, the class president from the first semester who had a dislike for Doyeong. During the sessions, Doyeong struggles to focus, as he is constantly distracted by Hajin. Noticing this, Hajin proposes to cancel their tutoring arrangement. "If I mess up again, you can punish me however you want, with a whip or a rope!" Unable to forfeit the tutoring, Doyeong blurts out this desperate statement, shifting the atmosphere of their sessions into a completely different direction.