Jun Suehiro, a sheltered daughter raised in a strict household, didn't start dating until she was past 20 and has only had two partners. With almost no interest in sex and completely unaware of how to masturbate, she remained a pure and inexperienced woman. She dreamed of a perfect married life with a husband so outstanding that even her father would approve. However, her husband's clumsy techniques left her wondering if sex was really supposed to be like this. Seeking answers, she began researching online and gathering information from friends. Driven by her innocent yet determined nature to resolve her doubts, Jun decided to take on a new challenge—appearing in a video to experience orgasm and true pleasure for herself.