EKDV-651 A day off alone with my slender, big-assed sister who silently seeks my body whenever our eyes meet. Ichika Matsumoto.

"My relationship with my sister... no words needed" One day, my parents remarried... and their stepchild 'Ichika' came to live with us as my stepsister. Suddenly, living with a cute sister who isn't even related by blood. I can't help but think about dirty things. One day, while our parents were out, it was just the two of us... I was more conscious of her than usual, and when I glanced at her, she seemed to be aware too... Then, without any words exchanged, we simply went ahead with the act based on the atmosphere alone. From there began my relationship with my sister where 'if our eyes meet, we fuck like monkeys without a word.'