Anja and Jungkook are both members of their school's dance group. Their practice room is where the red sofa stood. The red sofa where they first sat beside each other; where Jungkook first told her he likes her; but also the sofa where Jungkook kissed another girl and broke her heart. Anja doesn't want anything to do with his ex-boyfriend, Jungkook, anymore after he cheated on her. She just wants to forget how she wasted her time on him, how she gave him all her love. But when things turn unexpectedly wrong and they become partners for a dance competition, will the red sofa still be a part of their story? Or it will just be a part of their past?