In school trip to the nudist beach!!

Nudist Beach ni Shuugakuryokou de!! THE ANIMATION

Take a school trip to Nude Beach where this beach has rules for all visitors to be naked without dressing, and also men are forbidden to be aroused. However, if someone is aroused then someone will be given the opportunity to release his desire by doing pervert things in the tent. (Source: Nekopoi and Has Been Translated and Edited)