Doo-yeong (Lee Ki Hyuk), the eldest son of the family is planning to go to the police force this time. However, after coming to Seoul from the province, going with his younger brother Doo-yeop (Hong Seung-hui) to a cram school is not too smooth. His romance with Ji-yeong makes it also harder. Doo-yeong meets a lot of people and worries amidst his longing for success and love in Seoul.