Back home in the countryside for summer vacation,
the protagonist decides to hit up the local beach, and spots a cute girl.
But who does he find, but his childhood friend Aoi Yabuki,
and she gives him some teasing punishment for his blunder.

Without thinking, the protagonist grows a stiffy, and whips out his smartphone
to record the proceedings as her troubled face eyes his massive member.
This way, he can call her up, and fill her with his cream anytime he pleases.
His dream summer begins...

[From English DLsite]