A forbidden summer vacation between Anzu, a busty niece returning from the city, and her single uncle whose wife left him. In a rural house with no entertainment, her I-cup breasts are constantly on display... While lazily working on her graduation thesis, Anzu boldly masturbates to kill time. Her uncle, seeing her fallen asleep with her nipples hard, gives in to temptation.
'You touched my boobs, didn't you?' Anzu provokes him. While telling the cheap lie of 'It's okay as long as we don't have sex...', she gently demands his body, saying 'Touch me more...' and 'Hey, let's just do it after all!'
In the bathroom, she proactively begs, 'Uncle, kiss me,' leading to a perverted kiss where they exchange saliva. They gradually become obsessed, losing all resistance and mating over and over. Changing positions one after another, resulting in multiple creampies!