Yukari Tono, 28, works as an internist at a general hospital in Tokyo. Serious and intellectual, she is actually a total slut who secretly gets aroused by looking at male genitals during examinations. With her marriage to her fellow doctor husband being almost sexless, her desires finally explode, leading to her first massive squirt and ultimate climax... She reveals a lustful side that she never shows to her husband or at her workplace.