Yongsoon, a bold and audacious 18-year-old high schooler, finds herself enamored with her school’s athletics coach. Her world is shattered when she learns he is already in a relationship, a revelation that leaves her heartbroken. Compounding her distress, her father introduces a new stepmother into her life. Determined to find closure, Yongsoon claims to be expecting the coach’s child and arranges a confrontation with his partner. The meeting takes place in a classroom, with the coach and Yongsoon’s stepmother present. Will Yongsoon succeed in reclaiming her love?