Overview

Yuri, the mother-in-law, runs a snack shop. Teppei, the son-in-law, admires the unique sex appeal and sexy body of Yuri, who works at night. One day, Yuri hits his head and faints while cleaning. Teppei accidentally spots her and tries to take care of her, but his eyes are drawn to the defenseless big breasts in front of her, and he ends up playing a prank on Yuri. The son-in-law's desire accelerates when he gets to know the taste of Yuri's body, and he presses the suspicious Yuri for further relations, saying, ``Let's see if that sperm is mine...!'' The two end up in a messy affair that they can never tell their families...