Auto-World Bringer (Story of the Origin)

It was a world once filled with life, but a plague was suddenly unleashed, and plant life stopped producing. People were all sterile. Animals were dying left and right due to sickness, and all of humanity was being doomed because of all events that happened around them. It was a tragedy around the world, when all life stopped producing, and the Earth stood still, regressing as order in civilization breaks down and everyone was all on their own. The self-preservation, in the acts of hate and violence incurred casualties in the first hours of the realization that they were never able to reproduce. Modern civilization starts breaking apart into cells believing in their own conspiracies. And some cells even united to begin attacking former government and military positions. And soon, private armed factions began building themselves up in the world that was slowly turning apocalyptic.

The world's order in civilization ended in only a few months from the first time it was realized that no one could reproduce. Humanity was doomed to perish within a decade, and everyone in the formerly modern world was only waiting for their extinction...

...until salvation came, to slowly revitalize the world... but with one glaring exception: A spike in sensuality is needed to repopulate the planet...