The male protagonist is 14 years older than the female protagonist. The female protagonist is in junior high school. It was popular to have pen pals at that time. Therefore, an assignment left by the teacher and a letter sent from China to South Korea led to the two of them having a relationship...
Concept: The male protagonist is 14 years older than the female protagonist. The female protagonist is in junior high school. It was popular to have pen pals at that time. Therefore, an assignment left by the teacher and the male and female protagonists started to communicate because of a letter sent from China to South Korea...