Humanity's Crisis in the Apocalypse: Only I Can Reproduce

Humanity faces a crisis at the end of the world: there have been no new births for ten years! Panic grips the globe. If no solution can be found, human civilization will come to an end! But Cupid is the exception. He inherits the legacy of a master of fertility and gains the ability to evolve his reproductive powers. By chance, he spends a night with a woman he has never met. Before long, she turns out to be pregnant! The news is classified as the highest-level state secret, and a storm is about to break over him...