Bong Joon Gu has been in love with Oh Ha Ni since his first year of High School. He loves her so much that he follows her everywhere and encourages her, hoping that she will feel the same way. He is devastated when he finds out Ha Ni is dating Seung Jo, but does not give up on her until he finds out that she is marrying Seung Jo. However, he later meets a girl named Chris who has a crush on him, and they start a relationship at the end of the series.
