[PPPE-062] Three days of training her sister to be a cock-masturbator while she was on a trip with her friends Yuzuriha Karen

Yudzuru suspects his girlfriend is cheating on him, so he decides to take preemptive measures and cheat on her with her younger sister Karen. A horny young girl who is very cute and receptive to doing anything he wants.

A well-done drama. Yuzuriha Karen is amazing.