Gun and Golf have been pen pals ever since the fifth grade, and now that they are both in high school, they still maintain the habit of writing letters to each other. One day, the two, who have never actually met in person, decide to take a leap and meet one another for the first time at the school's annual sports meet.

With the university application results approaching soon, it seems that this group of best friends who have been inseparable ever since their childhood are finally bound to go their separate ways and pursue their individual dreams.