In order to train her toughness, flexibility as well as effective weight loss, Ruka Kanae enrolled in a fencing course at a reputable center tutored by a quality trainer. As a lewd woman, it is understandable that she often masturbates to release her desire in class. She even once offered to make a contract with the teacher to organize a naked sword fight, if anyone loses, they will have to do everything the winner asks. Of course, with such great motivation, Kanae will definitely have to try her best to achieve that desire. The result was not unexpected, she won and the teacher had to accept to sacrifice herself to help her release the lust that was overflowing in her body.