HBAD-725 - L-cup busty girlfriend, Shirayuki Mizuki, was targeted and had an affair with a senior.

My girlfriend, Mizuki, is a cute woman with an L-cup bust and loves sex, truly an ideal partner. I've been living with Mizuki for half a year and never get tired of having sex with her multiple times every day. I was secretly being affectionate with her even when friends came over, but it turned out they knew and had long wanted to sleep with Mizuki, so they drugged me with sleeping pills…