KIR-044 My busty saleslady sister-in-law gets laid off — Tsubaki Rika

My parent remarried, and Rika, my mother’s child from a previous marriage, became my stepsister. I live alone, and my stepsister also lives in company housing, so we don’t live together, but I’ve always been concerned about her. One day, when I came home from a night shift, my stepsister was standing in front of my door… After I invited her inside, we ended up in a dangerous relationship that became far too intimate.