Takumi Saburo lived his life dedicated to work until he retired. For his retirement celebration, he received a digital camera from his son's wife, Rin, and started photography as a new hobby. However, when he began living with his son and daughter-in-law, he couldn't help but be drawn to Rin's impressive cleavage, making it hard to stay calm. Before he knew it, the photos on his digital camera were all of Rin's chest. Takumi Saburo found himself increasingly obsessed with how he could manipulate those massive breasts as he pleased.
