Colored Glasses IV: The Pleasure of Being Seen, the Ecstasy of Staring

Real estate tycoon Kagami Yusuke is approaching old age, but he lives a flawless, smooth-sailing life. However, he harbors a perverse urge to spy on other people having sex, finding the ultimate pleasure. His object of desire is his son's wife, Saori, a kimono dresser. However, Saori also harbors a twisted sexual urge, secretly seducing men every day, without her husband's knowledge... What will the man and woman discover beneath the draped kimonos as their hidden desires intersect in the afternoon?

Takahiko is a man who has experienced a middle-aged divorce near retirement age and now lives a quiet, lonely, and boring life. After meeting Sakurai, a "procurer" who fulfills people's sexual desires, he begins to realize his long-hidden desire to peep. He begs Sakurai to let him see Umi, one of the most beautiful and elegant women in the company, in action. However, while she has a strong guard and appears pure and innocent to the men, they are still unaware of the true "desire" that lies deep in her heart... What will become of this sad man's earthly desires?!

Takuya and Yumika are a married couple living an upper-class life, but their sex life is a bit stale. But when the husband finds out that his wife has feelings for another man, an unexpected flame of lust begins to burn within him... With the guidance of "procurer" Sakurai, this twisted love affair begins, with Takuya peeking at Yumika having sex with another man, but soon it takes an unexpected turn, and the couple find themselves falling into a whirlpool of endless carnal desire...