Im Jin-ah is in her senior high school at Seoul Art school. She is charming, smart and talented. Despite being very popular, she is humble and friends with everyone. However, she never date before. She's always lonely and in search of the perfect guy. At the same time, there three heartrobs in the school is trying to win her heart. Xiumin - Nana's childhood friend. Always there for her. Lay - Cute and innocent. However, forgetful. A chinese transfer student. Play a lot of musical instruments. Chen - Nana's partner in theatre. They are quite close. Good sense of humour. Good in singing, that explains why he's in theatre. Kai - Seductive, well his looks. Although his playful, he is quite shy too. But he put his guards up and act like a player without really being one.
11 parts