Brincando com homens submissos - Ai Mukai engana homens no campus - garota de maiô treina seu namorado lamentável

I'm going out with my girlfriend, a swimmer with a short-haired and a swimsuit that looks great. However, when the two of us are alone, her personality changes and she tricks me and uses me as a her toy. Before long, I am trained to be a Man. This is the first "Dosu Shoujo" of Ai Mukai, a beautiful girl who looks slender but is actually a gymnast with muscles that will surely thrill the hearts of M-men.