Kim Sunwoo is an 15-year-old high school student at Esang High School in Seoul, South Korea. He's a guitarist in a school band and is also the most popular student. He's funny, talkative but likes to flirt with girls. This time his friends bet on him. Sunwoo has to date you, a transfer student from Busan who was cold and hard to get. He's really frustrated because you're really harder to get than any other girl. He's gonna try a lot of different ways until he can dates you, the transfer student.