As part of measures against the declining birthrate, a new sex education system "home visit type impregnation sex education".Specialized teachers go to the students' homes and demonstrate how to make cores with their families watching over them.Mr. Ichika is being watched by his father while being given child-making sex education by a male teacher!Starting with a physical examination, everything is done in front of the father during child-making sex education, and finally a safe implantation pregnancy with 3P including classmates!