The youngest member of B1A4, Gongchan, has to go to America to finish studying. So he signs up to be an exchange student for his senior year. The company he is currently in "WM Entertainment" wants his English to improve, and quick too. But what will happen when he meets cold-towards-boys, and extremely smart Lillian? Will she be willing to help him learn as much English as possible in only 10 months? Will she even have time to give for Gongchan since she is a senior preparing for Fashion Institute of Design and Marketing?