Just as her daughter got married and started living together, Shoko lost her husband. She was depressed for a while, but she somehow managed to calm down and the three of them started living together. Her daughter was strong-willed, but her son-in-law was kind enough to support her, and thanks to him, Shoko's smile returned. A few years later, one afternoon on a holiday. After her daughter went out, Shoko brought in the laundry and headed to her daughter and son-in-law's bedroom. She found her son-in-law taking a nap. She was surprised to see him sleeping with his stomach exposed, and when she approached him and tried to hide her stomach, she noticed that his crotch was bulging. She felt extremely embarrassed at the moment, thinking that she had never noticed it before when they had been living together. However, she couldn't take her eyes off his bulge, and she ended up touching it a little. Shoko was happy to see his crotch twitching, and when she confirmed that he was sleeping soundly, she gently pulled down his pants. His protruding penis was stronger than her late husband's, and Shoko was drawn to it and touched it with her lips. The son-in-law's rod gradually hardens. Shoko sucks it enthusiastically. When she receives the cloudy liquid that gushes out in her mouth, Shoko stands there for a while with a dreamy expression...