Souta takes his wife to the station before she goes on a trip. Living alone for the first time in a while, he is struggling with the housework when his wife's sister, Yuria, comes to help him. He enjoys her home-cooked meal, but is distracted by the plump breasts in front of him and can't concentrate on eating. He somehow manages to get through dinner time and immediately escapes to the bathroom, but Yuria comes in next. Right in front of him is her naked breasts, which he had been wanting to see but hadn't wanted to. Cornered, Souta's cock swells to the point of exploding...
