AV director Koichi Takahashi, who calls himself "the heartthrob of married women," invites his wife's female friend to stay at his house with ulterior motives. It's inevitable that something will happen when the married woman spends the night alone with him... Rika, 27 years old, married for 5 years, a full-time housewife. She recounts how she was sexually assaulted while at the pool with her family, and how the director tries to recreate the situation by touching her body, causing her to squirm and fidget. When her vagina is stimulated, she reaches ecstasy...