EMBW-042 Grandma's Writing Brush Fumino Mori

Akira and Gaku, who lost their mother when they were little, have been living apart for three years due to their father's job transfer, but they visit their mother's house for the first time in a while. He boldly reveals that Manabu is a virgin. In order to save her discouraged grandson, Fumino uses her own body to teach her.