向こうの両親の教育が厳しくて門限は17時。友人の紹介でかりなと付き合う事になったけど、デートといえば、おしゃれなカフェに、美術館。僕はかりなともっと先に進みたかった。でもいつもお父さんから帰宅の催促の電話がかかってくる。そんなある日、かりなの自宅に招待された。そして、そこで彼女の母親、さつきさんに出会ったんだ。さつきさんは大人の色気が漂う美人だった。しかし、そのさつきさんからかりなと別れろと言われた僕は、思わずさつきさんを押し倒してしまい…。それから、僕とさつきさんは密会を繰り返す事になった。かりなが門限17時になり帰っていった直後に…。
Her parents were strict, and her curfew was 5 PM. I started dating Karina after a friend introduced us, but our dates were always to fancy cafes and art museums. I wanted to take things further with Karina, but her father would always call, urging me to come home. Then one day, I was invited to Karina's house. And that's where I met her mother, Satsuki. Satsuki was a beautiful woman with a mature, alluring charm. However, when Satsuki told me to break up with Karina, I impulsively pushed her down… After that, Satsuki and I started meeting secretly repeatedly. Right after Karina's 5 PM curfew arrived and she went home…

– JavGG.net