Nam Joo-hyeok plays Han I-an, a rising star swimming athlete at Sekang High School. He looks as though he swept away all the medals at the swim meet. He looks as happy as ever and Lee Dae-yeon does too.
Nam Joo-hyeok has proven his swimming abilities and not only that, his lean and muscular body has everyone waiting in anticipation for the curtains to draw. He looks outstanding in his sweat suit which can be said to be the symbol of an athlete.
Lee Dae-yeon plays Han Ki-chun, a blunt but warm hearted man who is also Han I-an's father. He's always been poor but his swimmer son is his pride and joy. The two of them look cold but they are the closets father and son on earth.