修学旅行で地方の旅館にやってきた●校 3 年生たち。真面目で優等生のなみは、思春期の男子生徒がハメを外さないように見張るエッチ当番に任命される。エッチな物を持ってないか変な行動をしないかやんちゃな男子生徒たちが迷惑行為をしないか目を光らせている。案の定、エロ本を発見したなみは没収。取られた男子はモンモンと悶絶しなみにヌイて欲しいと懇願。優しさと押しの弱さからヌイてあげたことがきっかけでエロが連鎖していき、あちこちでエロ騒動が勃発。最後は全員参加の大乱交に発展。。。 ■出演 ・浅海なみ…真面目で優等生。リーダーシップもあるためエッチ当番に選ばれてしまう。頑張り屋さん。・男子A…素直で優しい青年。ちょっとナヨっているがむっつりスケベ。・男子B…ちょっとツンケンしたトッポいやつ。クラスのリーダー格。 ・男子C…ビビりのヤンキー。威勢は良いが根は優しい。オナニー大好き。？・男子D…めちゃくちゃ大人しい。密かになみに想いを寄せる。いつかデートしたい。・男子E…不思議ちゃん。常に本を読んでいる。 ・男子F…元気ハツラツな陽キャ。基本うるさい。おっぱい星人。・男子G…スポーツ青年。女をジロジロ見る癖がある。・男子H…明るくて気の利くやつ。足とお尻が大好き。
The third-year students of ● High School arrive at a local inn for their school trip. Nami, a serious and excellent student, is appointed as the "sex duty" officer, tasked with keeping an eye on the boys to prevent them from getting out of control. She keeps a close eye on them to make sure they don't have any erotic items, act strangely, or cause any trouble. As expected, Nami finds an erotic magazine and confies it. The boy who lost it is tormented and begs Nami to relieve him. Out of kindness and a soft spot for her, she does, which triggers a chain reaction of eroticism, with erotic commotions erupting everywhere. In the end, it escalates into a massive orgy with everyone participating. . . ■Cast ・Asami Nami…A serious and excellent student. She has leadership qualities, which leads to her being chosen as the sex duty officer. A hard worker. ・Boy A…An honest and kind young man. A little effeminate, but secretly a pervert. ・Boy B…A slightly prickly and cool guy. A leader in the class.・Boy C…A timid delinquent. He acts tough but is kind at heart. Loves masturbation. ? ・Boy D…Extremely quiet. He secretly has a crush on Nami. He wants to go on a date with her someday. ・Boy E…An eccentric girl. Always reading a book. ・Boy F…A cheerful and outgoing guy. Generally noisy. A boob-lover. ・Boy G…A sporty young man. Has a habit of staring at women. ・Boy H…A bright and considerate guy. Loves legs and butts.

– JavGG.net