Doo-yeong, 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 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.
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A love for a cousin, deeply engraved in childhood. Twelve years later, a stopped heart begins to beat again.
