Daehyun, a member of the K-pop group Monochrome, unexpectedly encounters a childhood friend at a fan meeting. He's surprised they don't recognize him and calls them a 'dumbass,' a moment he regrets. He's conflicted between wanting to reconnect and his fear of rejection. He secretly follows their social media, worrying about their well-being. Further chance encounters lead to more awkward interactions, leaving Daehyun unsure how to proceed.