The male and female protagonists were childhood sweethearts. When they were in junior high school, the male protagonist skipped a grade, changed schools, and moved. They had no contact for the next five years. Due to a strange combination of circumstances, the male and female protagonists met again in their senior year of high school and began their journey of falling in love (the second female lead and the second male lead slowly came into contact and fell in love with each other while the male and female protagonists were in love). Note: The female protagonist is three years older than the male protagonist.
