With the world they found, biped like creatures called humans are in a Intraspecific battle for the survival of their species. With a virus infecting 99.9% of all of the female gender, the hope to save the uninfected were near impossible. They turned into blood thirsty vampires that relentlessly targeted males. Before the infection, there lived 1 billion males and an outrageous 14 billion females. Now an estimate of 100,000 males remain. The rulers of Equestria now have to decide if they should interfere in the world, or let nature take it course.