Higashiyama, the president of a venture company, falls in love at first sight with Miu, a secretary at a subcontracting company. However, it is too late, Miu already has a husband... Higashiyama, who refuses to give up, keeps probing to make Miu his own at all costs, and as soon as he finds out that Miu's husband doesn't make much money, he offers her good treatment and succeeds in luring her to become his secretary. On Miu's long-awaited first day at work, Higashiyama puts her to sleep with sleeping pills and rubs an aphrodisiac into her. Unaware of what is going on, Miu cannot withstand the sudden pleasure that hits her, her legs trembling and she urinates. "What is this...?! My body is going crazy...!!" Thus begins Higashiyama's days of aphrodisiac training.