The president of a venture company, Higashiyama, fell head over heels for Miu, the secretary of a subcontracted firm. However, it was already too late; Miu already had a husband… Relentless, Higashiyama tried to make Miu his own by any means necessary. Upon learning that Miu's husband didn't earn much, he successfully poached her with better treatment to be his own secretary. The long-awaited day of Miu's first day at work, Higashiyama made Miu sleep with sleeping pills and applied an aphrodisiac. Unaware of such things, Miu couldn't endure the sudden pleasure that assaulted her, shaking her legs and wetting herself. "What is this…!? My body is going crazy…！！" And so began the days of aphrodisiac-soaked training by Tosan.
