The Delinquent's First Love

'Back in those days, the delinquent boy I liked... liked me back.'Dorae runs into her first love, Haewon, for the first time in five years at university. She receives a belated confession from him... but rather than feeling happy, she is simply bewildered.Why? Because he had a girlfriend! His insane confession, coming five years too late.Is this love really still valid?