[Alert rogacz!] Moja śliczna, niewinna i czysta przyrodnia siostra, która zdawała się mieć uczucia do mojego, była rogacz przez mojego przyjaciela DVD

When my parents were transferred overseas, I had to stay at my friend's house. That's where I met up with my cute, grown-up stepsister Yui after not seeing her for a long time. I was attracted to her naive and innocent nature, and we gradually became good friends. But one day, she started to avoid me... I started getting suspicious, and I later saw her getting fucked by my friend...