I was made into a sexual outlet for my husband's stepchild, who had pent-up desires. His incredibly enduring erection made me feel more than with my husband... Nagisa Koizumi

渚恋生饰演一位已婚妇女，面对继子强烈的性欲，她的内心充满了复杂的情感。白天的阳光透过窗帘洒进房间，渚恋生被迫在家庭与欲望之间挣扎，继子的存在让她重新审视自己的婚姻。