Night School Festival ~What happened to my childhood friend during the summer vacation~

High school is the best time in many ways. You don't stress too much, you have a lot of fun, you live and have fun. And best of all when you share this school time with your childhood friend, for whom you have "ambiguous" feelings...
But here's the problem, the vacations are not convenient as always, and the girlfriend left with a swimming club in summer camp. You can't find yourself wanting to see her again...
But will she ever be the same...