In today's Japan, where the declining birthrate and aging population are a major concern, sex education for high school students who are going through puberty plays a very important role. However, since our school is an all-boys school, awareness is very low! So today, three newly appointed female teachers will actually use their own naked bodies to teach us about "the difference between male and female genitalia" and "the mechanism of pregnancy and how to choose the gender of your baby"! Everyone! Thank you!