An office lady named 'Rin' working in the sales department of a certain company leads an ordinary, peaceful but unexciting daily life. She quietly completes her work and is seen by others as a quiet and serious woman, but the truth is different... Three years ago, when she was a university student, she became addicted to perverted exposure play under the influence of her boyfriend. After breaking up with that boyfriend, even if she dated other men, she couldn't be sexually satisfied and had to expose herself alone to get excited, but recently the thrill has been fading. One day, while she was naked in the company's break room, she noticed a man watching her from the shadows...
