A summer trip to the beach that she couldn't go to with her husband.
Yumiko was excited and looking forward to this day. But
when her husband can't come, she heads to the beach alone with her young son.
Just as she's feeling down, two young men approach her.
That night, Yumiko is invited to the room of the men who hit on her that day. She puts her son to bed and heads to the room where the two young men are waiting, with secret hope in her heart. A
forbidden summer begins, as she is consumed by carnal desires despite being tormented by guilt...
旦那と来られなかった夏の海。
この日を楽しみに気合いを入れていた由美子。
旦那が来られなくなり、小さな息子と二人きりで海へ。
意気消沈しているところを二人の若い男性に声をかけられる。
その日の夜、昼にナンパしてきた男達の部屋へ誘われた由美子は、息子を寝かせ、密かな期待を胸に若い二人の男性が待つ部屋に向かうのだった。
罪悪感に苛まれつつも肉欲に溺れる、禁断の夏が始まる…
