VEC-119 — Mother's Best Friend Ryoko Nagase

My mother's best friend, Ryoko, suddenly came to stay at our house. There seems to be some reason for this... And that night, I witnessed Ryoko masturbating, and I started to see her as a woman rather than my mother's best friend. And then, due to a strange incident, I ended up in a relationship that should never have happened between me and my mother's best friend.