Stressed from working overtime in a sweltering office due to a broken air conditioner, a subordinate continues to be scolded by his cold and aloof boss, Yumi Kazama. The mounting pressure gradually drives him into perverse fantasies. Then, an electrician arrives to fix the AC and forcefully begins giving the subordinate a massage, eventually raping his aroused body. Yumi further seduces another repairman, sensually teasing his young cock in a slimy, provocative manner. The explosive, erotic sequence of events featuring her busty milf figure unfolds like a feverish dream.