A world where "practical sex education" exists, which was introduced as a measure to combat the declining birthrate. It is a new type of sex education in which a man and a woman actually have sex and impregnate each other to learn about sex. In this work, female teacher Wakamiya Hono Hono uses her own body to directly teach one student after school. She carefully teaches him which parts of a woman's body are sensitive and how to please him, and lets him experience making a baby by actually touching him, inserting himself, and ejaculating inside him. Then, by impregnating him, she gives the student the experience of impregnating someone, completing her education... Enjoy this wonderful sex education from teacher Wakamiya, who teaches you all about her naughty body and impregnation-related lingo!