Do Kyungsoo is the top senior student at SeJong High School. He has a crush on Nam Jihyun, a classmate who seems oblivious of Kyungsoo having a crush on her. He decided to confess his love for Jihyun but he has another competitor Kim Seonho, a basketball player and classmate who has a crush on Jihyun too. Will Kyungsoo be able to win Jihyun's heart?