"I can't believe I'm spending this summer with you!" "Well dream on Mr. Choi Soobin, I hate you more than you hate me." In where Yeonjun was really happy to join the summer camp for a whole 2 months, whilst Soobin was a whiny kid who hates that he was forced to join in the camp. Little did the two know, who we're enemies since childhood, finally met again for almost 15 years of their lives.