Haruka Shinozaki has been fascinated with Akiho Kousaka since their first year of high school. She is stunning, skilled in sports and an exemplary student. This year, they are both in the same class, so Shinozaki decides to express his feelings towards her. To his astonishment, Kousaka agrees to be his girlfriend! However, he soon discovers that she is unlike any other girl he has ever met: this seemingly perfect woman has never been involved in a romantic relationship before. Despite her lack of experience, she promises to do everything in her power to satisfy Shinozaki's desires, including learning multiple sexual positions and fulfilling his fetishes. Although Shinozaki tries to convince her that her studies into these subjects are unnecessary, Kousaka remains determined to make him happy in every way possible.