An alternate world where one day, quite suddenly, 100% of men were abruptly as satisfied by masturbation as they were with sex. Society came to a bit of a halt as men abandoned their jobs and positions of power and instead just wanted to sit around in their homes playing video games. Women began to take over these positions of power and men began to leave civilization altogether to go live in seclusion. Women quickly understood that this is a problem for the species at large and began workshopping a plan for procreation. After years of effort a "hunting/courting" program was initiated wherein women go out into these secluded areas to try to seduce a man - men still very much like sex, they just don't have any particular need (nor aversion) to have sex with someone else. This hunting/courting program includes an 8-year public education course that begins in high school and finishes after college (or whatever the equivalent grade categories are in a world without men). This story would consist of those lectures.
