In a special class designed to combat Japan's declining birthrate, students learn about sex through their female classmates' bodies! During the third period of today's lesson on pregnancy mechanics, the teacher uses Hina Makiuchi as the teaching material. Despite her initial resistance, she eventually gives in when faced with the country's insistence. As everyone watches via webcam, Hinami gets penetrated by a CCD camera while enduring the touches of boys' fingers and tongues. Unable to hold back any longer, she cries out and orgasms heavily, squirting all over the place. Just as she thinks she's ready for more, the school nurse steps in with a huge dick, using it to teach them proper techniques for impregnation. While experiencing multiple intense orgasms due to the massive amount of semen being injected into her, Hinami learns firsthand how satisfying it can be to help save Japan's future!