Park JiSoo, an absolutely normal girl with some kind of unique personality which is some people from her neighbourhood called her hyung and oppa with her not so girly body and short hair. Even though she quite adventurous, she was a kind girl. But, she doesn't like that one boy who's name is Cho KyuHyun. Cho KyuHyun, a boy with poker face but love to play some tricks and jokes on his friends and JiSoo because he thinks that she doesn't care with his jokes and he continuously play jokes on her. Since Kyuhyun came to her life, JiSoo doesn't think that she can live in her life anymore because of Kyuhyun. Until that one day.....