それはそれは暑い夏-。久しぶりに実家へ帰省した裕介。家には二人の兄も帰省していて、ふたりの義姉も来ていた。「どちらも既婚だ。」しかも、好みは似るもので嫁はどちらも『巨乳』。名前もゆりさんとゆりあさんと来たものだ。そして、ひとり独身、彼女無しの裕介の目の前で汗を浮かばせ無防備な姿でくつろいでいる…。刺激が強すぎる。ついに我慢ができなくなりゆりあの寝室に忍び込む裕介だったが、それをゆりに気づかれ…。
It was a very hot summer. Yusuke returned to his parents’ house for the first time in a long time. His two older brothers were also there, and his two sisters-in-law were also there. “Both are married.” Moreover, they have similar tastes, and both of their wives are “big-breasted.” They even have names, Yuri and Yuria. And in front of Yusuke, who is single and without a girlfriend, they are relaxing in a defenseless state, sweating… The stimulation is too strong. Yusuke can no longer bear it and sneaks into Yuria’s bedroom, but Yuri notices him…

– JavGG.net