過疎化が進む超田舎の陸上部が、都会の大会に出場することに！これを聞いた村の重鎮たちは、強化合宿と銘打って部員を集め泊まり込みで特訓することに。しかし真の目的は村の大人たちの性欲処理だった。異議など唱えることのできない陸上部員は、ありえない半裸スクワットやお触り柔軟体操…等のセクハラ指導に従うしかない。極めつけはゴムを付けての性行為！都会では当たり前？これでいいタイムが出せる？と言われ信じる純粋な田舎の女子生徒たち。さらに性的な快感を覚えた女子生徒は自ら生で挿入！我を忘れて大乱交に発展してしまい…！村の悪い大人たちの指導という名の悪戯にまんまとハマり、性トレーニングの泥沼に堕ちていく…。

A track and field club in a remote, depopulated rural town is set to compete in a city tournament! Upon hearing this, the village elders gather the club members under the guise of a training camp, making it an overnight intensive training session. However, their true purpose is to satisfy the sexual desires of the village adults. Unable to object, the track and field club members have no choice but to endure sexually harassing instruction, including unbelievable half-naked squats and touchy-feely stretching exercises. The ultimate humiliation is sex with condoms! "Is this normal in the city? Will this help you get a good time?" they are told, and the innocent country girls believe them. Furthermore, the girls who experience sexual pleasure begin to insert their penises without protection themselves! They lose themselves in the chaos and it escalates into a massive orgy…! They fall right into the trap of the village adults' mischief disguised as training, and descend into the mire of sexual training…