At a general hospital in the city, Akari Tono, a 28-year-old internist, is known for being earnest and intelligent. However, it turns out that during examinations, she secretly gets excited by examining male genitalia, a rather lewd behavior. Her desires have exploded, as she is almost sexless with her husband, also a physician. This led to her first experience of a massive squirt and climax... showing a side of herself that she would never reveal to her husband or at work.