Shiina Aoi

For Chiaki, a hostess at a "pink salon" (adult-oriented massage parlor), men were merely tools to be used; as long as she got paid and felt good, that was all that mattered. She assumed Aoyama, the civil servant she lived with, wouldn't meddle in her affairs—after all, he was a mama's boy. Little did she realize that Aoyama was beginning to see her as more than just a roommate... Then one day, Amagi, a divorced office worker, visited the shop. Chiaki found herself drawn to the cool, composed Amagi—a man who didn't immediately try to make a move on her body.

Mikami is a dignified pharmaceutical company president, but he harbors a secret: he enjoys engaging in "baby play" with his wife, Etsuko. Numakura, who has been entrusted with the top-secret task of developing a new drug at the president's home, spies on these intimate moments; he is secretly in love with Etsuko. Meanwhile, Numakura’s assistant, Ami, harbors feelings for him. One day, Numakura discovers that Etsuko is plotting to kill her husband. Aware that he had been spying on the bedroom all along, Etsuko seduces Numakura and draws him into the scheme, but...