Shy, friendless Y/N admires former child actor Lee Ji-hoon from old reruns for his bright charm. Seated beside him at Hanlim High, her star-struck gaze earns only his cold disdain and subtle cruelty. His bubbly childhood friend Kim Soo-ah befriends Y/N, and Ji-hoon makes a deal: help him win Soo-ah. Y/N agrees, wanting his happiness. But as Y/N glows up with newfound confidence, her feelings for him fade. As Y/N begins to change, will Ji-hoon’s long-held feelings for Soo-ah stay the same… or will he start chasing the girl he once pushed away?