en Cuevana. Haejun has always been the top student at his middle school in Gangbuk, but his family moves to Daechi so he can attend a better high school. At his new school, he quickly takes the No. 1 spot from Eunseo, who has always been at the top. Determined to bring him down, Eunseo, Nayeon, and the other students try to shake Haejun's confidence. Meanwhile, Haejun develops feelings for Eunseo and is attacked by the other students.
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