A son who hates studying and is a ronin. His hobby is photography, but he doesn't go that direction, and his mother is at a loss. At that time, he remembered his friend Chisato, who used to be a private tutor. Chisato happily accepts and asks her son's private tutor. Little by little, her grades began to improve as she said that she would give Chisato a reward if she worked hard. Having reached her goal, her son asked her Chisato to let her photograph her. Confused, Chisato complied, and the photo session began. The excited son took off his clothes while releasing the shutter and showed Chisato her erect crotch and made him grasp it. Chisato is puzzled by what happened, but she ended up sucking her son's crotch as she was told...
