After losing his job and returning to his family home, Tetsuo is shunned by his relatives and builds up resentment. His brother's wife, Mao, supports him through this time. However, Tetsuo struggles to find a new job and can't resist Mao's sweaty skin, raping her. Coming to his senses, Tetsuo decides to leave the house and apologizes to Mao, but she responds in an unexpected way. Tropical night… Sweat-soaked, Mao and her brother-in-law indulge in their desires.
