Matsuyama Haruna works as an office lady on a daily basis. This time, she participated in filming during her day off. Though she had her first sexual experience relatively late at 19, she attended an all-girls school and had little romantic experience, rarely encountering potential partners. Naturally curious, her ideal sex involves 30 minutes of foreplay and 60 minutes of intercourse—she enjoys slow, relaxed intimacy. Each time she's asked, "Where do you feel it?" her interest grows even deeper. These days, she's become a big fan of blindfolds, finding it enjoyable to hide her shyness while freely releasing her instincts—she's developed quite a passion for it. After her first time, her boyfriend taught her how to masturbate, and now she enjoys more fetishistic techniques using ice, brushes, and blindfolds. The purpose of this shoot is to have her demonstrate masturbation using ice, brushes, and blindfolds.