[AMBI-167] Three days alone with my playless sister! I had sex all the time! ! Saki Sakura (Censored)

My mother remarried and I have a brother who is not related by blood. I was worried at first, but I got along too well and became more than brother and sister. I usually steal my parents' eyes and do naughty things with my brother, but this time, my parents will be away from home for 3 days due to a memorial service. I'm really looking forward to three days with my big brother!