Adult Content Warning
This work could have adult content. If you continue, you have agreed that you are willing to see such content.
-
Nature of Instinct by Mrs_Galaxy_M
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
14 Jun 2026
Tags
Summary
But the years passed, and instead of excited discussions filling the palace halls, tension slowly began to choke them.
Because omegas had stopped being born.
Not all at once— it was not so dramatic as that, not a single year that history could point to and say, here, this is where it ended. It was slower. Birth tallies that came back lower each season. Registry lists combed through again and again, first with confusion, then with urgency, then with something very close to panic.
OR
Omega birth rates dropped so low that Katsuki became the first Alpha king in his kingdom’s history without a mate.
Everyone treated it like a tragedy.
Years later, he goes to a neighboring kingdom for a diplomatic visit. Catching the sweet scent of someone... unmated