Yumi Hirohisa is 45 years old. Yumi is a full-time housewife who started volunteer work at the request of a neighbor's wife 10 years ago, and she has mastered sign language to the point where she can now teach it to others. In the summer two years ago, she ended up cheating on her husband with a university student who was also participating in the volunteer work. Their relationship lasted for a while, but they eventually broke up. Wanting to somehow recapture that thrill, she came up with the idea of ​​appearing in an adult video where she could have sex with a young, muscular man, and contacted Senbire. Be sure to watch the moment when Yumi, who appears pure on the outside, reveals her true nature as a burning, carnivorous wife!!