久しぶりに田舎へ帰ってきた相沢。実家にいくと、両親の離婚で行き場を失った幼馴染の華が居候していて、今では相沢の部屋を使って生活していた。かつて清楚で憧れの存在だった華は、今では奔放でノリで生きてる感じの女の子へと変貌していた。村の男はほぼ全員がセフレで完全なるビッチ。そんな華を見ているだけの相沢。しかし夏祭りの夜、蒸し暑い部屋で二人きりの空間。欲望を抑えられずマンコにむしゃぶりついて、そのままセックスを始めるのだった。

Aizawa returns to his hometown after a long time. When he arrives at his family home, he finds his hood friend Hana, who had nowhere to go after her parents' divorce, staying with him and now using his room. Hana, who was once a pure and admired girl, has now transformed into a free-spirited girl who lives life on a whim. Almost every man in the village is her sex partner, and she's a total slut. Aizawa just watches Hana from afar. But one night during the summer festival, they find themselves alone in the hot and humid room. Unable to control his desires, he pounces on her pussy and they begin having sex.