After several years in company housing, Nana and her husband get another new employee as their next-door neighbor. Hashimoto, her husband's earnest new subordinate, often joins them for dinner, and Nana grows fond of looking after him. But Hashimoto's admiration for her gradually turns into romantic obsession. His sudden confession shocks Nana, and, unable to contain himself, he forces her down. She tries to resist, but the hardness of a cock after so long and the intensity of the sex soon overwhelm her mature body with pleasure.