Nanoha Mizuno, who has a husband 30 years her senior. Apparently, even before marriage, she had always been attracted to older men. Her parents objected to her marrying someone much older than her—older than their own father—but she paid no mind and chose to marry him anyway. However, with age-gap marriages, it's often said that differences in daily life can create emotional gaps and build up dissatisfaction. Most notably, there's the issue of their sex life. Nanoha is still young and desires frequent sex, but her husband often fails to reach ejaculation, frequently going soft before finishing. As a result, she began watching adult videos to relieve her unmet sexual needs, which eventually sparked her interest in performing in them herself.