Never underestimate what might happen when healthy high-school boys suppress their desire for sex!

With their first flushes of youth beginning to blossom, Subaru and Jinnai fell in love with each other and became boyfriends. However, ever since they caressed each other that day at Subaru’s house, Jinnai became reluctant to make any sort of move on Subaru.

“They don’t show what happens after the two lovers kiss each other in those shoujo mangas (bibles)!”

One day, with Subaru burdened with a sense of uneasiness for what’s to come, for the first time ever in their relationship, the mood had been set! However, Subaru’s tension was sky-high and he blurted out, “Since I’m doing it with you… I’m sure everything will go smoothly!” with a cheesy smile plastered across his face!

You only get to experience summer as a high school junior once and Subaru and Jinnai have just taken a huge detour in their relationship. Where will their youth take them?!