307SHIC-236 시라이시가의 쌍둥이 자매 누나의 란짱~오빠는 달콤한 냄새의 향기 밀실에서 여동생에게 유혹되어, 꿈 같은 음란한 시간을 보내는…

다음 중:The story of Ran, the older sister of twin sisters from the Shiraishi family. Ran is proactive and active. She asks him to teach her how to study so that she can do something naughty with her beloved brother. Even though she knows that her brother should not fall into the trap, she continues to fall for Ran... and... My younger sister Non found out about it, and the sequel was called ``The Shiraishi Familys Twin Sisters, My Younger Sister Non-chan...